# CVE-2026-39834: Invoking infinite loop on large channel writes in golang.org/x/crypto/ssh

> An attacker can cause a denial of service by triggering an infinite loop via large SSH channel writes due to an integer overflow.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 May 2026
- **Updated:** 22 May 2026
- **Also known as:** AZL-87203, AZL-87233, AZL-87302, AZL-87423, AZL-87441, AZL-87648, AZL-87687, AZL-87762, AZL-87933, AZL-87972, AZL-88065, AZL-88152, AZL-88212, AZL-88350, BELL-CVE-2026-39834, CLEANSTART-2026-AG86727, CLEANSTART-2026-AI26012, CLEANSTART-2026-AO75517, CLEANSTART-2026-FD78851, CLEANSTART-2026-MS71426, CLEANSTART-2026-MV50731, CLEANSTART-2026-NH56500, CLEANSTART-2026-NY83828, CLEANSTART-2026-OL23592, CLEANSTART-2026-PT94864, CLEANSTART-2026-UG93832, CLEANSTART-2026-UN89941, CLEANSTART-2026-XX72571, DEBIAN-CVE-2026-39834, ECHO-6719-84c0-1336, GHSA-rm3j-f69w-wqmq, GO-2026-5020, MINI-222q-jf6w-7hxm, MINI-22wj-h34m-wv9f, MINI-233j-m2r5-wxjv, MINI-2375-6fhp-jhxr, MINI-238w-5fv7-c6vm, MINI-23mf-gw9v-x428, MINI-23q3-2jmf-89cp, MINI-248g-6x82-6qp2, MINI-252p-242f-cm98, MINI-258m-m5wf-cv7q, MINI-25jp-qphr-h6jv, MINI-2633-gp63-cqfv, MINI-2657-vgx9-4px2, MINI-2669-hfwh-v9m6, MINI-267m-grqj-5jpw, MINI-28p2-fqgc-48rv, MINI-2939-c8q3-wjrc, MINI-293j-x24m-x434, MINI-2947-6qv3-3j7h, MINI-298c-c3q2-vgfm, MINI-2c6v-p694-8xpr, MINI-2cc4-mv6w-7m69, MINI-2chq-xwrp-5qm9, MINI-2cv7-237f-g7q8, MINI-2f2f-x8g5-x2hf, MINI-2ffm-w55m-jrqr, MINI-2fxg-pxfq-2cvf, MINI-2g24-xm34-c7p3, MINI-2ggp-9fmp-j8pr, MINI-2hv7-j6pf-6xp7, MINI-2hvf-5vf3-chm3, MINI-2jwf-3w82-hvqq, MINI-2mf8-r8v4-pc9m, MINI-2mjw-pmfm-h5g6, MINI-2p73-mhjf-hj83, MINI-2pmj-qr98-wvm7, MINI-2q4j-3gvp-4x48, MINI-2r38-jfjw-xfgh, MINI-2r5m-76p2-prcw, MINI-2r9g-392g-8r4v, MINI-2rfq-g299-pvp4, MINI-2rgr-jmwr-2g62, MINI-2rwg-68hr-r5w4, MINI-2v6g-mr8v-pg6r, MINI-2v6w-qmgc-xfvq, MINI-2vhq-j3v9-3gvh, MINI-2vjc-fh9v-f8p8, MINI-2vwq-8cm4-x8r6, MINI-2wgh-m33g-ch2g, MINI-2wvq-4982-hr9x, MINI-2wx6-h89r-grxv, MINI-2xv4-p59w-vg9c, MINI-2xxf-9q8c-g95v, MINI-322g-36hc-57q8, MINI-326q-2j76-r74v, MINI-33cv-q69v-vvc5, MINI-33pr-xq2r-w839, MINI-345q-8vq4-m32p, MINI-348p-w876-q462, MINI-34mr-jq33-mf42, MINI-34q6-jxrw-5cr7, MINI-34v7-hvc4-495r, MINI-3526-f3xh-xp8w, MINI-3554-w4wv-7gmh, MINI-3579-4r97-2mvv, MINI-3589-9xcm-7877, MINI-36c7-fxp2-x6wh, MINI-3759-mj34-777r, MINI-376j-f7fg-vhgh, MINI-38q8-cqcq-h4xg, MINI-38qg-ccrq-63xf, MINI-38r3-6h82-5cc5, MINI-3c7q-93jq-qvwx, MINI-3cgg-9j58-832r, MINI-3chw-w5cx-9m66, MINI-3f6x-mxgx-wpj2, MINI-3ffx-6ccm-rwgq, MINI-3fmv-6cx4-69fg, MINI-3fv2-jm7m-v5v6, MINI-3g26-5p6q-8x3w, MINI-3g9c-x22f-7x6q, MINI-3ggv-wxqp-x8v5, MINI-3ggw-vmx4-j56m, MINI-3gvc-cwgv-2wrc, MINI-3j9x-64wv-48f5, MINI-3jc9-8gjm-xhgj, MINI-3jpx-vf9v-vcfj, MINI-3m38-8h74-vc26, MINI-3m5j-crc7-g526, MINI-3m6f-fmqh-xmgf, MINI-3mpc-fv4x-2xjm, MINI-3p72-ghh8-j28q, MINI-3prc-v4xv-5fmw, MINI-3q2x-66gf-6hvj, MINI-3q8w-5pqq-xjg9, MINI-3qgv-hc26-gvmw, MINI-3qqg-gjjw-mwr5, MINI-3r3m-m3wc-jp56, MINI-3rc2-gq7w-xvhg, MINI-3rgq-5vhp-p5pg, MINI-3rjx-h6wj-89hx, MINI-3rpw-hq65-76g9, MINI-3rqw-86pj-65jp, MINI-3v4q-cm3p-69vw, MINI-3v4x-xpg2-8pvg, MINI-3v65-g757-5mhj, MINI-3v6j-cvwg-2qcw, MINI-3vhp-fr42-jmfw, MINI-3w3v-85ph-r9m4, MINI-3w78-jhg4-r955, MINI-3wc9-xf5h-8c3c, MINI-3wmf-96pq-82wp, MINI-3x5v-996w-gjgh, MINI-42mf-55hj-2gpx, MINI-436j-c46c-m9wr, MINI-43g8-556w-wg2m, MINI-43jg-qw2q-2qqr, MINI-44gp-7gm8-3fr2, MINI-44jx-v7rx-pgxp, MINI-44ph-5247-wrrq, MINI-44rf-65xx-545p, MINI-44ww-gp57-28qh, MINI-454w-38h3-24wg, MINI-47v9-2v49-2m37, MINI-47w6-q5q3-9rm7, MINI-493p-9v2m-cm4v, MINI-495w-qmxr-xxg5, MINI-4cr3-r2jp-5mrf, MINI-4ffh-fp5g-69h8, MINI-4fjh-6jjq-5xw8, MINI-4fq5-g6mv-28rj, MINI-4frp-5cm3-4wcp, MINI-4g56-92cm-4rp6, MINI-4g88-fwmm-428w, MINI-4gf5-vwv4-2xpg, MINI-4h8h-6mhw-pc24, MINI-4hgj-x9j5-q54v, MINI-4hjm-9vxw-qmj5, MINI-4hpp-7qf5-5m4g, MINI-4j8h-8q8j-p98w, MINI-4jf3-m5h2-72jf, MINI-4jrw-4g3g-wxqr, MINI-4m2g-2fxx-97cq, MINI-4m83-9j34-f99c, MINI-4mh6-wfp7-x79r, MINI-4pfc-7jjc-f2m9, MINI-4prf-h53c-rr3g, MINI-4q3r-pp3m-4hf6, MINI-4q45-9cfr-jhgq, MINI-4qfx-882w-5v6m, MINI-4qm6-49qh-5wjc, MINI-4r3f-rp9h-4cm9, MINI-4r59-g2qf-ph2w, MINI-4r8p-29q4-pc88, MINI-4r9w-j54g-33rf, MINI-4rhm-w3jr-frv8, MINI-4rmc-754r-h5vg, MINI-4rr2-w4cx-9cfx, MINI-4v3h-m7xv-w4gw, MINI-4v4p-c5rw-2xp9, MINI-4v74-94jj-9hc8, MINI-4vh9-42wx-wxwx, MINI-4vrm-g8j6-5ccr, MINI-4w2g-39f7-46xr, MINI-4x5g-4gcx-qp62, MINI-4xrq-g9pm-x7c2, MINI-52q9-765r-39qx, MINI-534p-9p2c-4v66, MINI-53hr-7vhg-fw3q, MINI-543v-vrc4-xvcr, MINI-54h4-hq5w-pvvc, MINI-557w-cqx3-ccx8, MINI-55pc-vrpj-pmw2, MINI-565g-c2jm-gcmh, MINI-5672-248g-cvfr, MINI-56mc-wccc-jp5q, MINI-56x8-gjjr-g3pf, MINI-56xq-4cg9-px29, MINI-573j-6j6f-rv8x, MINI-57gf-g72r-c75c, MINI-583f-rvv5-4f36, MINI-58wf-7rf8-q72h, MINI-5946-f9qx-wh3r, MINI-599x-v66x-f4ch, MINI-59c7-h899-vj58, MINI-59qj-h879-r87m, MINI-5cj3-4rcx-j6f3, MINI-5fmv-6284-mr3c, MINI-5fx7-rvx9-fqqr, MINI-5gmq-qmjx-gvvf, MINI-5h23-h6rv-56g2, MINI-5hcm-7m4c-w3gw, MINI-5jj8-2p7g-86q2, MINI-5mfc-f2cx-x2cp, MINI-5mxw-v672-hff5, MINI-5p49-xm7h-4883, MINI-5p9p-57fx-8884, MINI-5pm2-4g7x-wx8h, MINI-5pmp-qjj3-8334, MINI-5q3x-cxrh-4c2v, MINI-5qgg-mm38-xvc7, MINI-5qhc-cppx-62vg, MINI-5qww-8x78-hpjv, MINI-5r25-2w8v-wjgw, MINI-5rwm-f3h4-fpqf, MINI-5rx5-c9wf-x5hm, MINI-5v79-8mwg-85xm, MINI-5w62-wxmc-hvq8, MINI-5wcv-5gcr-rwcp, MINI-5x22-cqh2-32cw, MINI-5xr9-383p-7rc2, MINI-5xrr-v779-8mvq, MINI-5xv5-x9ch-qjwx, MINI-627q-mwxf-3gjh, MINI-62cj-cjjr-62wp, MINI-62jf-fgrc-jp78, MINI-62m5-jr7m-3688, MINI-62rw-2cgm-r7m9, MINI-6399-22m6-44r4, MINI-63f7-qjj6-2mc9, MINI-63gv-55gr-rmr5, MINI-63r7-fx9q-h678, MINI-63w5-v5px-rmp8, MINI-63x6-ffxc-m7mq, MINI-645h-w9rm-9jvr, MINI-64vj-4x73-9r8r, MINI-658f-2r4g-g9gm, MINI-65pj-956v-25xq, MINI-666c-9f9m-83gm, MINI-66pj-qj66-cg5q, MINI-66rx-2773-9gf2, MINI-66vp-rp56-7vm3, MINI-6722-vf8r-rw68, MINI-67q7-45jm-qv64, MINI-67w3-62hc-2mc8, MINI-6892-969x-vr42, MINI-68f7-5r5x-7g42, MINI-68mc-jqq4-9mfj, MINI-68qm-9844-2wcf, MINI-6939-4m73-7h6c, MINI-69jm-x9ch-333q, MINI-69m4-cg68-56h6, MINI-69mw-x7vg-wm7w, MINI-69v4-5mw5-9j3q, MINI-6c55-3g29-6qgg, MINI-6cjf-9pj2-jj3c, MINI-6cm2-4c29-f7j9, MINI-6cvm-6qmv-q2xh, MINI-6f87-pfm2-3vjc, MINI-6fhx-46rf-4h33, MINI-6gcr-rwwh-wj26, MINI-6ghw-5h67-932j, MINI-6h42-qxq9-grcf, MINI-6h7h-xh5c-h2x3, MINI-6hg9-q42g-fmx8, MINI-6hvm-rqm6-vv7r, MINI-6j7x-p4p7-c8pf, MINI-6jj6-fgrg-c38x, MINI-6jph-m3x7-xgj4, MINI-6jw2-pcg4-pqrr, MINI-6jw3-348w-f2hv, MINI-6m73-fv66-38r5, MINI-6phj-h24c-2cgw, MINI-6pjq-h3c3-xqqc, MINI-6ppp-9683-hx58, MINI-6q2j-pwm8-89j7, MINI-6q67-wq34-qwx5, MINI-6qv3-w535-jq69, MINI-6r57-5m35-cwq8, MINI-6vgc-249j-2p2v, MINI-6wc8-jw7x-w5vr, MINI-6wg5-m87c-vh2f, MINI-6wpw-hc2g-hph7, MINI-6wv6-3m82-9pq9, MINI-6wvg-prq9-phqj, MINI-6xh9-775p-jm54, MINI-6xjp-wq88-w45c, MINI-6xp3-w47j-3qmg, MINI-6xvx-685j-836m, MINI-6xx8-2cxj-jm9p, MINI-722q-qfgq-m2f8, MINI-724v-m2hm-6743, MINI-724w-wxw6-62pg, MINI-7288-34p3-25qh, MINI-728q-7vp6-43xm, MINI-72f3-g4hp-48r8, MINI-72qh-453c-w89r, MINI-72rm-vw96-c3jr, MINI-72xc-xgj9-xxq2, MINI-736w-fprf-cr59, MINI-73f4-wg2j-7wgm, MINI-73fq-jwg4-v5m7, MINI-73r3-ppxf-jfq8, MINI-74cr-f45j-44h4, MINI-74gr-5fv2-cjfg, MINI-74qh-3mmf-j2rm, MINI-74w3-4fwf-j5hv, MINI-757w-f942-6rqr, MINI-759p-8x99-c83r, MINI-75rf-3wv2-rm9j, MINI-762c-vmx7-cw3h, MINI-763j-4xwm-mpr9, MINI-768q-c6q4-xh2g, MINI-76j4-5cxv-wgfw, MINI-778h-g9q8-pj22, MINI-77jr-mrp4-wrg6, MINI-7867-qgv4-vfh3, MINI-78r7-vqrj-49q3, MINI-7976-hphc-8c29, MINI-7c69-jgq7-rcvq, MINI-7c7x-366f-vf9r, MINI-7cx8-w788-6c44, MINI-7g9w-67xv-p3xg, MINI-7gq2-vcwc-qp7f, MINI-7h28-grrc-qv4j, MINI-7h73-mxc8-pm4c, MINI-7hhq-2v79-fm6p, MINI-7hqf-w6hw-5248, MINI-7jrc-hcx3-f37f, MINI-7mm4-rvr9-p438, MINI-7p3c-m657-3j74, MINI-7p4f-qg65-jq5f, MINI-7p63-7r34-c6m7, MINI-7pjq-6chx-5hph, MINI-7pm6-3574-f8rv, MINI-7qj9-8c6h-3v73, MINI-7qr5-wcrw-j35w, MINI-7qw3-p4wh-4w86, MINI-7r69-g9gx-5xr4, MINI-7r89-p6pg-fvcj, MINI-7rc8-975c-hmwv, MINI-7rch-pfx9-9rmf, MINI-7rhx-qh54-pv96, MINI-7v5h-xvgc-xc65, MINI-7vcv-78qp-2m27, MINI-7vjq-r87p-j7h8, MINI-7vvw-85vx-crw7, MINI-7vwm-987x-wf7x, MINI-7w93-3mxw-4w78, MINI-7wg4-q89r-f5pv, MINI-7wmw-rqv6-38j8, MINI-7x66-5895-r2cf, MINI-7xw3-2c6v-x9j6, MINI-82jm-568m-rwcf, MINI-82px-hcqf-xvqr, MINI-82w2-p787-hcj5, MINI-832w-3g82-9ch3, MINI-83fp-9j94-7g2v, MINI-83fx-4w2h-hq5p, MINI-866v-rjmx-qjm5, MINI-8698-hrpc-pv7m, MINI-869r-c6hj-cf5r, MINI-86p8-75cq-2xw2, MINI-86qq-6pcx-fg92, MINI-8772-v5fr-6cjh, MINI-877q-wwm5-6c59, MINI-87c4-gj32-h2vc, MINI-87h7-cgx8-gw7m, MINI-87vp-gjq3-p42r, MINI-88w8-558g-wxqg, MINI-88x4-695r-7qx5, MINI-8ffx-2qxh-c6q6, MINI-8g6w-vrp4-384c, MINI-8gh9-3pfg-37f3, MINI-8h26-xcfx-8hrf, MINI-8h66-92cg-wch6, MINI-8h94-xwv2-25rh, MINI-8hgg-8q24-hq7m, MINI-8hhm-449v-2824, MINI-8hp8-jr2g-9j6w, MINI-8j3r-66jj-j85q, MINI-8jrj-758q-xr75, MINI-8jwx-ffg6-x3h2, MINI-8m42-mv94-jc73, MINI-8mw2-f43j-vh6h, MINI-8p6j-84g9-7q5c, MINI-8p9h-5h6v-6gj2, MINI-8p9m-2w7p-w3x2, MINI-8qfr-xgjg-xrhm, MINI-8qvr-3c3f-9cmg, MINI-8r4m-f69g-4c9m, MINI-8r6p-9rpm-crmq, MINI-8r88-cf9g-6gmp, MINI-8rhv-p3ch-9c3c, MINI-8vc7-2hw2-4h2g, MINI-8vfp-8wp3-r272, MINI-8vfr-cvfj-57f3, MINI-8vqp-qx9r-6m4w, MINI-8x62-mv2m-gwm8, MINI-8xh7-jxxm-57f6, MINI-8xhp-vxpp-6ffj, MINI-8xw5-r8rj-6mv8, MINI-924f-j538-rxhh, MINI-924g-h5h6-xh84, MINI-926m-6r64-55g8, MINI-92wj-6f6q-pq3j, MINI-93x2-v2c9-cj2q, MINI-9449-xrrh-q9hg, MINI-94cr-w3cf-w757, MINI-94fj-rq9h-gr2v, MINI-9638-qhmh-q32c, MINI-9646-393r-5m2x, MINI-9663-9mg7-hh4x, MINI-96gc-hfcg-q5h9, MINI-96q2-3fcf-2gf8, MINI-96rq-43vr-qcpf, MINI-96rr-qwc7-9wf7, MINI-9894-4j8h-9f5h, MINI-98gg-24rp-w26r, MINI-98rj-vcf3-pw8x, MINI-98rw-46cg-r9jw, MINI-98w5-v86h-xcmr, MINI-996c-5gjv-4vrq, MINI-99pp-3f29-v3p6, MINI-9cfc-x93p-2mjc, MINI-9cw9-98jq-c8pc, MINI-9fc3-v33m-v8rw, MINI-9fcv-8ppx-2jxp, MINI-9fwq-qvmg-56h2, MINI-9g5m-vvff-r5wg, MINI-9hfc-vcm8-h5gc, MINI-9jcw-hqj9-5qff, MINI-9jfc-6hw2-rjxc, MINI-9jrq-6jpc-g5g9, MINI-9m98-gr3c-jqwj, MINI-9mg7-frj7-9vf9, MINI-9p7w-2786-24xq, MINI-9pc7-2pm8-g75r, MINI-9pf3-g5c7-vwq2, MINI-9phh-6v4v-x5xx, MINI-9phm-hq9q-xr9c, MINI-9pm2-3m6x-88w2, MINI-9q4r-744r-xjv4, MINI-9q57-pj73-rvc6, MINI-9qp3-8fgh-wf79, MINI-9rcx-j92j-q2f2, MINI-9rvr-735w-5cq5, MINI-9v5c-fcff-jj7m, MINI-9v88-x39j-8qmc, MINI-9vf9-ffr2-7gjj, MINI-9vr2-267x-m7vx, MINI-9w7q-x7p7-85cx, MINI-9wc8-257g-c3jv, MINI-9wm4-hrw8-p8gg, MINI-9wqg-72mq-2qgv, MINI-9xf5-mw7h-p4qq, MINI-9xmr-h4qg-j9m9, MINI-c2c5-9hmx-9g9q, MINI-c2xg-h7gq-2gx2, MINI-c3x8-p8j9-m5v3, MINI-c4jm-53f5-3fpc, MINI-c4wf-wwpg-gv25, MINI-c58j-3j6w-jffh, MINI-c5jp-p6vr-762w, MINI-c635-2629-g3g4, MINI-c645-j392-74h9, MINI-c737-fpfj-89mm, MINI-c76x-2j7j-cfw4, MINI-c7x7-g4vg-952c, MINI-c8qr-mv3x-m2vr, MINI-c9jj-xg55-9vf5, MINI-c9px-8r58-cfpp, MINI-c9wq-x3j8-632g, MINI-ccf7-5xqf-6gc3, MINI-ccpw-85wx-hp92, MINI-ccrq-cqv9-rpjv, MINI-cf2f-2c8v-v67q, MINI-cf72-6wrv-f629, MINI-cfjf-rrm2-mc2x, MINI-cg5c-q7vc-5rw2, MINI-cgc9-2prj-xmpq, MINI-cgv2-6v5q-hfjx, MINI-ch6f-f38h-vfjv, MINI-ch6m-7cw5-4vc4, MINI-ch74-vw5q-8qj3, MINI-ch99-w86c-r6h7, MINI-chhx-h64p-cmmq, MINI-chv9-4fw4-24w3, MINI-cj4m-gxgm-272x, MINI-cj5j-cwwc-3j76, MINI-cj5m-qgvj-cq74, MINI-cj92-4597-pv8p, MINI-cjj9-7xq6-fwh8, MINI-cjmc-7p4q-68v5, MINI-cm33-4r2f-8c7m, MINI-cm8r-9jwj-mwrr, MINI-cpf7-qmx9-wqcr, MINI-cppv-cg78-v3qq, MINI-cq7v-wm45-4qx3, MINI-cqfq-4wq4-p74j, MINI-cqww-qpjj-v5cc, MINI-cr49-wgv2-5f3q, MINI-cr5j-3gv7-qwhg, MINI-cr95-2c5g-pv5q, MINI-cw69-x5w9-qfc9, MINI-cw7p-r6gp-2rv4, MINI-cwqr-c8v5-mh99, MINI-cwwv-6fc6-ggx8, MINI-f27x-6qpq-f2h6, MINI-f29c-5j7j-x3xc, MINI-f2hx-8p6m-j6qc, MINI-f2jv-qxc8-5fj9, MINI-f2xx-cp5m-5hjw, MINI-f397-25x6-2mcj, MINI-f3fx-mhq2-wpj3, MINI-f3p7-5v8j-vxwm, MINI-f48v-8r7f-q7c3, MINI-f4g8-8h7q-7m93, MINI-f56j-qpmf-rgp7, MINI-f5mm-4wgc-7mq8, MINI-f5vh-rpwr-2f69, MINI-f624-2wrf-j722, MINI-f662-c47h-pqgr, MINI-f678-7f22-83pp, MINI-f69w-vc73-5h74, MINI-f6fq-f8fq-pqgv, MINI-f6qh-q984-prj4, MINI-f6v5-m3jg-6f48, MINI-f723-4m9h-9pwg, MINI-f73p-p44m-3564, MINI-f78c-g9wm-x2gj, MINI-f78p-j4fq-qjj9, MINI-f793-6f5j-324j, MINI-f7qc-9q3x-qrgp, MINI-f7r9-gj74-9ffc, MINI-f7xh-rh6g-q364, MINI-f825-crrc-j7rq, MINI-f82g-hfrq-f349, MINI-f8jc-2h6x-mc4c, MINI-f965-7j7v-9wrv, MINI-f97g-hjgf-xw7j, MINI-f9r2-h4w4-22v9, MINI-fc3m-h896-f4qf, MINI-fc43-wrwx-vjgw, MINI-fcx8-8qpr-r44m, MINI-fcxq-q3vg-w8gx, MINI-ff74-4g65-jfj8, MINI-ff77-82g2-2m8x, MINI-ff8g-6wfc-f973, MINI-ff8j-7778-273c, MINI-ffh2-hfmm-rgxv, MINI-fg24-mgq4-rjcc, MINI-fg7c-c7vh-h337, MINI-fg95-36g6-88mw, MINI-fgfg-j4wc-hxwv, MINI-fgj5-8gqc-w5hp, MINI-fhj9-9vq6-f74m, MINI-fhxh-mpp9-f22w, MINI-fj5h-p4h2-h37q, MINI-fm49-mcph-9r7c, MINI-fmc3-6g36-5hp7, MINI-fmpx-3r9f-cx58, MINI-fmpx-q593-8vrg, MINI-fpg6-cr68-wcfr, MINI-fpqx-mg3j-45hj, MINI-fq9r-8p33-qmfh, MINI-fqgw-c3wj-88qc, MINI-fqmf-rwc7-rp43, MINI-fr25-q3hh-f6fh, MINI-fr9v-4728-p9gh, MINI-frcg-5fpj-m5g7, MINI-frq5-m35r-j2xc, MINI-fv2g-mgg6-cwwh, MINI-fvq6-gjwv-p9xf, MINI-fw2w-qxf8-rw48, MINI-fwfc-g7h4-9r64, MINI-fwhr-6jc4-fhq4, MINI-fwj9-fwfv-2g99, MINI-fwwm-7v82-4vcw, MINI-fx9v-w364-4gp9, MINI-fxfw-q4gj-9wv6, MINI-fxj3-q7x4-8248, MINI-fxmx-78rq-vxxx, MINI-fxp7-q42w-r6rh, MINI-g2j2-qh2g-px65, MINI-g363-2g87-cgvm, MINI-g3cf-cj8v-gvcw, MINI-g3cw-v7fw-4cj5, MINI-g3h9-3hcx-fgf3, MINI-g3jj-39fx-652g, MINI-g3m9-cjcg-pw8g, MINI-g3mf-hg3m-rwwh, MINI-g45m-868m-j4p6, MINI-g4m6-6p58-cjvx, MINI-g59q-899h-4h8q, MINI-g5pv-j5m2-4hh3, MINI-g5w8-3hj5-wc9x, MINI-g669-gjxc-x829, MINI-g68x-2xgf-pmww, MINI-g6g2-vfxr-prg3, MINI-g6j3-c8w2-fcw2, MINI-g6j7-57pw-xwgq, MINI-g6mr-r76p-hfwq, MINI-g6w8-q29c-j42q, MINI-g7r3-339q-q378, MINI-g862-jgc7-6cq7, MINI-g996-54mj-8cjv, MINI-gc2f-rr95-6rhj, MINI-gcfv-hxm7-vx66, MINI-gcmh-627v-43c2, MINI-gcxg-9qmv-fg5x, MINI-gfmj-jg6g-fvj7, MINI-gg6g-29g7-q755, MINI-ggp8-hcmm-4xm2, MINI-ggrf-5qxm-9pq6, MINI-ghr9-h87h-3mc7, MINI-ghwj-fx82-v7m9, MINI-gjrp-c39f-h9m8, MINI-gjv2-j9w8-3cw6, MINI-gmrw-9xp9-92pp, MINI-gmwm-j238-fwx5, MINI-gp3w-qxq6-3366, MINI-gpvx-xcvh-6v36, MINI-gqhg-vgwf-x255, MINI-gr87-h4w9-2r35, MINI-gv83-4cp2-r4v4, MINI-gvhq-cghj-7hj2, MINI-gvmp-jwpj-mjrv, MINI-gw24-3hw3-g8h8, MINI-gw7j-g7qh-gxg7, MINI-gx5r-w5vx-428m, MINI-gx78-pph9-5xg4, MINI-h229-ph4f-m33c, MINI-h29v-4xw8-fcfr, MINI-h2j2-jf59-w6c7, MINI-h3q3-4h8x-p2gg, MINI-h4jc-7mh5-7mr9, MINI-h56r-425f-4qr8, MINI-h57q-5g8x-vwf2, MINI-h5cf-6qw3-2px8, MINI-h67r-9x26-9qwq, MINI-h787-5v9g-x3vq, MINI-h8j2-83gf-2h4w, MINI-h98w-v7pw-6fjx, MINI-h9fj-x9cg-6fc5, MINI-hcr3-6958-px3p, MINI-hf7x-392v-9rx9, MINI-hff3-7jh8-fmrr, MINI-hfxg-r354-ffch, MINI-hg9h-8995-5p2h, MINI-hgpp-5rj3-8xf2, MINI-hh9g-52pv-r3pf, MINI-hhgh-8222-m332, MINI-hhw9-rwqw-jq5r, MINI-hhx7-h6mr-6pxm, MINI-hhxj-wgjr-qwv6, MINI-hj57-p76f-hhw4, MINI-hjwv-qhvv-r556, MINI-hm57-fw77-wv83, MINI-hm85-cj39-x674, MINI-hmpm-w7mj-ppj8, MINI-hp52-vx7q-8pf3, MINI-hr54-5w48-2qcj, MINI-hrcj-pxv3-hj34, MINI-hv3m-wc7f-4562, MINI-hvcq-4966-cfvp, MINI-hvpj-87mm-j4xj, MINI-hvqm-cqqh-fg47, MINI-hvw3-j8pv-hmj2, MINI-hw2m-f9wp-fw43, MINI-hw3c-v7fx-p7q2, MINI-hwwh-f9qc-45w4, MINI-hx54-qqq5-jmr6, MINI-hxcw-g8xm-j922, MINI-hxj7-pffj-qrm8, MINI-hxw7-2fj5-qpj2, MINI-j454-6v39-f5m5, MINI-j48c-6wq5-642r, MINI-j4hx-jxx6-2h2q, MINI-j4w2-xj28-j49m, MINI-j57w-55hp-cc79, MINI-j5hh-cfg3-f6j5, MINI-j5wf-5cxx-6w6q, MINI-j692-3wvf-5w79, MINI-j73m-r352-f9p7, MINI-j7mg-fj3g-h277, MINI-j83w-f8x4-r395, MINI-j8v7-c8vq-gx79, MINI-j92p-hx5g-gmwr, MINI-j92w-9vhq-hqqj, MINI-j97w-g253-4g24, MINI-j9fp-9qqq-gxhj, MINI-j9qr-8333-8h8x, MINI-jc78-ggw6-8g33, MINI-jcc9-xhr7-gx7v, MINI-jcfp-6vq7-95xj, MINI-jcwr-cjwf-h928, MINI-jcwr-g77r-r8gw, MINI-jf3r-23g7-5rpj, MINI-jfgv-m5px-v4ff, MINI-jfmf-275g-c3c6, MINI-jfrp-cfrx-x99v, MINI-jgfp-2jp4-pr9f, MINI-jgrj-xj6v-5r8q, MINI-jgrp-8mr7-8j27, MINI-jgw7-2vcm-f8wx, MINI-jgx5-g2jq-8mfp, MINI-jhgq-55f4-972g, MINI-jhhh-ggw6-qp46, MINI-jj3w-f836-4xmq, MINI-jjc6-g7hr-xgx6, MINI-jjgp-x532-66pw, MINI-jm58-276m-x6gw, MINI-jm67-mw88-998g, MINI-jm6j-mr37-hwm8, MINI-jmjg-ww5f-pgqc, MINI-jmpv-vv7f-5h6x, MINI-jmx6-48mg-ff5j, MINI-jp3c-x6hg-4ph6, MINI-jpc3-r983-qjv3, MINI-jphh-cjcp-467c, MINI-jq2j-c677-j825, MINI-jq6q-p3c4-mrv8, MINI-jqgr-gw33-vxrm, MINI-jqmf-frxx-wcfq, MINI-jqxj-97qh-rfxc, MINI-jrhf-24gp-9vgx, MINI-jrhv-x772-ww7q, MINI-jrvr-xpg2-4m7f, MINI-jv2x-5j96-jfgq, MINI-jv89-58gr-2qc2, MINI-jvrx-fcwp-p2hx, MINI-jwqq-vcvj-7347, MINI-jx6r-3459-j9jv, MINI-jxcv-gc39-q8cp, MINI-jxhf-v3cx-7v5p, MINI-jxq6-hfvp-39rf, MINI-m2c7-wr23-rhj2, MINI-m494-mpvp-79q7, MINI-m49v-wm87-2px7, MINI-m4hw-6chc-h3q7, MINI-m4rp-q74x-vx77, MINI-m56j-5fxf-4v86, MINI-m58g-8v33-xqw6, MINI-m62p-fjf6-rg9r, MINI-m68x-5r6q-7h5v, MINI-m69m-5g3f-w9vm, MINI-m6jm-g9x9-fr2h, MINI-m732-2r82-2j7v, MINI-m75r-8jfh-j7hf, MINI-m8jc-r63f-j86q, MINI-m8w5-rg4j-2cjc, MINI-m95p-95r4-5q68, MINI-m979-ph72-c6vf, MINI-m9gw-cfm8-fvfm, MINI-m9qg-4c7v-475f, MINI-mc24-mjrh-v527, MINI-mf2h-36w5-pxm5, MINI-mf65-xm6r-qx89, MINI-mg3g-4qj2-94c7, MINI-mg7x-5gr4-8g96, MINI-mgrw-839m-hmh3, MINI-mh4j-7r4r-vc4v, MINI-mh9g-p9wf-qpm4, MINI-mhcq-jxrc-q4j6, MINI-mhhm-7jmj-4w98, MINI-mjcg-87vh-r5jj, MINI-mjp6-m676-75p9, MINI-mmgh-wc4q-966x, MINI-mmp7-8h6g-8m4m, MINI-mmr2-x46q-3qrr, MINI-mpfq-w4gg-hfxh, MINI-mq28-cjhm-jrmv, MINI-mq5c-cppj-49g6, MINI-mqc4-24hv-jccj, MINI-mqjf-5j8f-c3g6, MINI-mr5v-qmvx-p77r, MINI-mv66-4v5f-mgjq, MINI-mvjw-6jqq-9wwj, MINI-mvqw-hchq-4rp4, MINI-mvwq-4fr4-r45v, MINI-mw5x-h9wm-p6gg, MINI-mw7q-p35w-68j6, MINI-mwgf-56m5-2q78, MINI-mwgr-pc47-75q2, MINI-mwqp-f76g-gpf8, MINI-mx24-3qxg-4xrm, MINI-p235-rx4r-2vx3, MINI-p24g-g5j2-jg3v, MINI-p28w-xr32-g43f, MINI-p2vj-7hpw-3xc5, MINI-p333-5f6g-88vj, MINI-p3hf-hp37-hrc5, MINI-p3jv-c48v-v939, MINI-p4pj-365h-pj4h, MINI-p4xx-45gw-m7j4, MINI-p64j-93jj-7m4v, MINI-p654-9qcj-grc2, MINI-p678-mjgm-h46j, MINI-p6g3-87j3-vr59, MINI-p6gp-2j9g-5gvg, MINI-p7f6-h3c7-2jj4, MINI-p7mm-2545-6mrg, MINI-p894-3g33-46v7, MINI-p8f3-38v8-7ghp, MINI-p8m4-h4hh-qw26, MINI-p9p3-r7hw-58rp, MINI-pc89-h473-4723, MINI-pf2j-rwjr-53qv, MINI-pf8w-8w3j-m64h, MINI-pg2x-6ccq-gj73, MINI-pg5h-wx76-rrfr, MINI-pg92-qx96-c7wf, MINI-pg9f-4rvq-q4qr, MINI-pggg-xvj2-pxm6, MINI-pgrj-2j4c-m46v, MINI-pgrm-hmvp-465p, MINI-pgrr-38hq-338j, MINI-ph3c-xx7j-6v2w, MINI-ph87-688q-886v, MINI-pj5w-646f-xxvx, MINI-pjcj-6vw2-8mjx, MINI-pjgc-x8vm-75jw, MINI-pjw7-rmmx-vj84, MINI-pm5q-wggq-348w, MINI-pq23-ch3j-mc4c, MINI-pqvw-jgj4-g5f4, MINI-pr5h-qrg6-p8px, MINI-pr67-44fj-q774, MINI-pr9j-c8vp-j77p, MINI-prjg-fr59-4hpm, MINI-pv2w-93wr-q7p7, MINI-pv9p-6prq-6x35, MINI-pvgm-q49h-rgcm, MINI-pvqq-q354-3r42, MINI-pw34-r7pp-3h36, MINI-pwcw-rc3p-j7p3, MINI-pwg3-m8pq-mmw4, MINI-pwv2-gfrr-6cr5, MINI-pwvf-49vr-382h, MINI-px6c-5568-728r, MINI-pxf9-mf4g-wmp4, MINI-pxmv-rphp-jvx5, MINI-q278-9hx2-ggr4, MINI-q2fr-r5w6-vhvq, MINI-q3m9-cm85-xqmp, MINI-q3qq-448v-p5fh, MINI-q3r2-gwh2-7m6p, MINI-q3vr-vp8w-jv95, MINI-q4j4-4pqw-69m7, MINI-q4j7-fq6p-vp3w, MINI-q4m9-w7jm-ppx8, MINI-q52c-x7cx-3jw9, MINI-q52j-43rc-w7h7, MINI-q52r-mgqm-3mxh, MINI-q536-87r6-vfpc, MINI-q56w-p554-p642, MINI-q59f-2p97-wj7w, MINI-q5gp-pxr6-gq82, MINI-q66x-xfpq-mx2f, MINI-q675-cw9f-97pq, MINI-q7hp-2787-7q9r, MINI-q7m5-xqcx-rgmg, MINI-q7q6-8j48-fpc3, MINI-q7qp-9wh2-prmh, MINI-q7xg-364g-4vj7, MINI-q84p-xqf8-jvwm, MINI-q86w-gcm8-67v9, MINI-q89q-cf2p-gg7p, MINI-q8cg-5mp9-7jw5, MINI-q8wr-555g-2g2c, MINI-qc6q-545g-c66j, MINI-qfj3-7mh4-wfx2, MINI-qg6g-5rfx-26j8, MINI-qg7w-64cc-rjv9, MINI-qgmf-prxx-6g9w, MINI-qh2c-mx2j-64v9, MINI-qhxh-58r2-h787, MINI-qj4q-7g79-73rh, MINI-qj5j-5f36-4fgm, MINI-qj7g-49h6-xprg, MINI-qjm7-2722-hv9f, MINI-qjww-q3pf-749c, MINI-qjx6-gjw3-9m2m, MINI-qm23-9mpp-mj5v, MINI-qm77-63j7-p3g8, MINI-qp3j-fc9r-6pxx, MINI-qp47-rqvf-mxgf, MINI-qp5r-g6xx-hmfj, MINI-qpcx-767q-wwjj, MINI-qpff-98p6-38pg, MINI-qph6-cx3f-4gmp, MINI-qpjr-c4v7-3wmv, MINI-qq4x-pv86-gfcw, MINI-qrfg-68m2-43p5, MINI-qv5f-qrrg-w4h2, MINI-qvp4-6p5w-8gfw, MINI-qw5j-337g-59fr, MINI-qwfp-vwh5-gh4x, MINI-qwgm-6hwg-43xm, MINI-qx64-8m25-69x2, MINI-qx89-f38g-h8hr, MINI-qxf9-7xqp-f3gw, MINI-r299-92jr-h76c, MINI-r399-6p8g-2vfx, MINI-r3fr-756c-pfqp, MINI-r3jw-fcc3-4h5f, MINI-r3q6-9f7p-fm9w, MINI-r3x8-jhwj-c4w3, MINI-r428-xhqc-g9v5, MINI-r44r-h7m4-c38w, MINI-r48p-mj8m-mpr2, MINI-r4pm-6hg6-7jpf, MINI-r53j-7g4f-6jmj, MINI-r5jc-f34x-384f, MINI-r68f-vwr5-fj93, MINI-r6r2-96rj-c9r4, MINI-r7fm-gjm9-37rw, MINI-r7h5-779f-7ffg, MINI-r7jr-m6f5-36cw, MINI-r7pw-76r6-hqhc, MINI-r89g-vc56-8fhq, MINI-r89p-9gh9-7p95, MINI-r8jj-5j5j-4xw7, MINI-r92x-964g-346h, MINI-r97w-c5cv-6wfw, MINI-r9f7-8chr-6wv7, MINI-rccp-2hg5-45w2, MINI-rch3-443q-8vx6, MINI-rcx2-75q4-p992, MINI-rf97-8f89-643p, MINI-rg39-h5mq-gv5p, MINI-rg78-cwgf-hc2w, MINI-rgmh-j4j5-pxq7, MINI-rgq8-xp59-hfvf, MINI-rh2m-43mp-5vmp, MINI-rh49-h979-qgxh, MINI-rj27-f288-6x5m, MINI-rjvw-84p7-cx3g, MINI-rm49-rph8-8679, MINI-rm65-ff5c-66wh, MINI-rmvp-q239-9974, MINI-rq2v-qr3j-h2jg, MINI-rq6g-jv3v-6j62, MINI-rq7f-h7mv-85jw, MINI-rrhj-r834-vp78, MINI-rv2h-7cr2-fg6f, MINI-rv3w-hhh8-995j, MINI-rv6g-22cr-jqxv, MINI-rvjp-j42f-crr2, MINI-rvw8-8pcp-jrgp, MINI-rw42-xjhp-94r2, MINI-rwcq-mc3v-fggq, MINI-rx5r-f53w-2q4m, MINI-rx8m-6jcw-48j9, MINI-v227-rp47-h4xp, MINI-v233-vrxx-mvhc, MINI-v23q-25c4-p4mp, MINI-v2p5-h6g5-5qxf, MINI-v2wh-75hj-mxgx, MINI-v362-h58q-fmqx, MINI-v383-fv8f-vf4m, MINI-v386-f3f8-36gg, MINI-v3ff-j3qw-c3hp, MINI-v3pw-6h7j-h8mg, MINI-v4ff-m528-8q84, MINI-v4hv-6gxf-x39h, MINI-v4v5-c7mx-9v8j, MINI-v54c-6hqx-g8r6, MINI-v572-42cj-p7vp, MINI-v5m6-pw8v-7fp8, MINI-v6mw-mj66-c9qw, MINI-v6p5-89wf-w258, MINI-v786-6c5f-jjcq, MINI-v78x-v6hp-mwhg, MINI-v7xf-xcpg-4qm7, MINI-v833-xgm6-5rhh, MINI-v85q-4f65-rxqq, MINI-v85r-7hqc-859g, MINI-v89x-7667-67rx, MINI-v8m2-g9j9-9w83, MINI-v8q4-m7q3-43mg, MINI-v8xg-w224-2mjr, MINI-v9qj-9224-7fmf, MINI-v9v9-6m3x-pcqf, MINI-vch6-99wp-gcwj, MINI-vchj-6889-w5rf, MINI-vcp7-r4p9-2rg4, MINI-vcx4-pjq7-gqwv, MINI-vf2p-h5cq-m8gp, MINI-vf3g-4hw5-vm8c, MINI-vg2x-vf8v-hp76, MINI-vgm2-hmgp-p7vx, MINI-vgm9-xqxr-xm76, MINI-vgv7-f39q-c646, MINI-vhr4-f8fw-mvvr, MINI-vj29-2php-xjrv, MINI-vj4v-xg4m-p2m7, MINI-vj69-qw36-67r2, MINI-vjch-mwg3-r832, MINI-vjf4-44rf-rqjj, MINI-vjpg-7gm3-f3jp, MINI-vjr5-cfv7-2f73, MINI-vjrr-xh8w-x982, MINI-vmch-5c58-m2rq, MINI-vq2v-8jwj-5jrw, MINI-vr37-3w55-m7qr, MINI-vrvg-8j2f-q56c, MINI-vrwr-j9jp-8qwr, MINI-vvcx-76j4-78c2, MINI-vw9f-456m-xjxx, MINI-vx2m-w2rv-566g, MINI-vx57-4m4c-hxhv, MINI-vx78-7vxq-x3wf, MINI-vx83-965r-g2m4, MINI-vxcj-h3w8-wx63, MINI-vxg3-3h39-48rm, MINI-vxx6-vwgp-vvx2, MINI-w2jc-c5fg-pc9m, MINI-w2p8-vw7m-5w5q, MINI-w2q3-gg36-q9pq, MINI-w2wv-238m-5xc5, MINI-w35m-3r6h-hv9c, MINI-w3vx-vccv-9vvg, MINI-w44p-xfpq-jffh, MINI-w462-r883-pg2j, MINI-w46x-r78m-289f, MINI-w47q-2fj5-3j63, MINI-w4m5-97mc-fx9h, MINI-w4pj-mx2r-4p9g, MINI-w4qm-439r-v7cc, MINI-w4rh-mr74-9c4g, MINI-w4v9-pcx5-g3hq, MINI-w55h-q9j6-c8hp, MINI-w576-2f75-7xcq, MINI-w58w-q834-mrpx, MINI-w5v4-hxjr-rr5x, MINI-w6cx-3974-j7c4, MINI-w78v-c795-v5q9, MINI-w7cf-cqfc-fw82, MINI-w7fg-cjc8-pcm5, MINI-w7j4-3wx9-hv7w, MINI-w7jf-39x3-jhm9, MINI-w8mf-g732-xhx2, MINI-w949-9f5m-m8f4, MINI-w9hj-42hm-jcfp, MINI-wcfr-589r-xr2w, MINI-wcfx-jfhq-w236, MINI-wcg6-w2f2-hj2v, MINI-wj3x-jw78-v7qj, MINI-wjpm-9hmg-r8pr, MINI-wm6c-gh2f-wp9v, MINI-wp66-x5jr-g74h, MINI-wpv2-mj4g-8crp, MINI-wpx3-h679-wrg2, MINI-wq8h-g7fq-qhcp, MINI-wqcf-xp3p-jfj7, MINI-wqhj-22r9-8467, MINI-wqjf-5wvw-5p4m, MINI-wr88-r743-rqpr, MINI-wrhr-gm88-h9qf, MINI-wrw7-5g2r-9958, MINI-wv34-jrp6-w22p, MINI-wv3h-274j-2j67, MINI-wv53-qp7j-pgm9, MINI-wvfg-q99f-6mg7, MINI-wvgc-5vjr-6wr3, MINI-ww8x-84m9-xp85, MINI-wwhq-m5g8-hq5j, MINI-wwv4-v2vc-wcgm, MINI-wwwh-xr7m-g26f, MINI-wwxv-mcpj-gg86, MINI-wx89-fqm3-3825, MINI-x263-hhh9-hhg2, MINI-x2j5-pj2x-5wqv, MINI-x342-8x5g-xw88, MINI-x394-f977-vhxg, MINI-x3f9-jvmf-qcg5, MINI-x4c4-52j7-7rvx, MINI-x4x4-5pg5-84cw, MINI-x57m-pwch-gjx9, MINI-x6cf-f4jp-w2vg, MINI-x6gp-gpq3-cx6j, MINI-x6pg-284h-7rj6, MINI-x6w9-7m6g-g344, MINI-x6x6-jppj-p626, MINI-x6x7-qr6v-7wcm, MINI-x739-87rv-x96w, MINI-x84j-mqx7-64wc, MINI-x8fh-54gg-4cq4, MINI-x8q8-f4hh-chcc, MINI-x934-p983-j3mg, MINI-xc3x-r5qm-h5f8, MINI-xcm4-mxg7-qh62, MINI-xf3v-xfvm-q32g, MINI-xf49-rrv3-w983, MINI-xfff-2fcf-xhmx, MINI-xfww-hhpg-jmj6, MINI-xgj2-x665-j57m, MINI-xh4j-vvqh-gf4m, MINI-xh79-7j9x-68pm, MINI-xhx6-hvph-wxgm, MINI-xmg7-x2h9-m3ch, MINI-xp2x-jg7g-6x87, MINI-xpc4-cm22-4499, MINI-xq23-9p3f-fxr4, MINI-xq96-r8c6-vh83, MINI-xqxr-85mm-gc7r, MINI-xrq5-h9vw-g72r, MINI-xv95-p385-g2f2, MINI-xvcw-6qrx-g8c5, MINI-xvhp-f93w-5237, MINI-xvhv-5mfh-3cq5, ROOT-APP-GOBINARY-CVE-2026-39834, UBUNTU-CVE-2026-39834, USN-8447-2

## What is CVE-2026-39834?

CVE-2026-39834 is a critical vulnerability in golang.org/x/crypto/ssh, published on 22 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2026-39834?

3 open source packages ship an affected version, including golang.org/x/crypto. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `golang.org/x/crypto` | Go | All versions | 0.52.0 |
| `golang.org/x/crypto` | Go | All versions | 0.52.0 |
| `golang.org/x/crypto` | Go | All versions | 0.52.0 |

Products: Golang Crypto.

## How do I fix CVE-2026-39834?

Upgrade golang.org/x/crypto to 0.52.0 or later.

## Is CVE-2026-39834 being exploited?

There is no known exploitation of CVE-2026-39834 in the wild and no public exploit code.

## Other vulnerabilities in golang.org/x/crypto/ssh

- [CVE-2026-46595](https://insights.sbomify.com/CVE-2026-46595/): Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh (critical 10.0)
- [CVE-2026-39830](https://insights.sbomify.com/CVE-2026-39830/): Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh (critical 9.1)
- [CVE-2026-39831](https://insights.sbomify.com/CVE-2026-39831/): Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh (critical 9.1)
- [CVE-2026-39832](https://insights.sbomify.com/CVE-2026-39832/): Invoking agent constraints dropped when forwarding keys in golang.org/x/crypto/ssh/agent (critical 9.1)
- [CVE-2026-39833](https://insights.sbomify.com/CVE-2026-39833/): Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-39834 and fix it if it is affected.

What it is: CVE-2026-39834 is a critical vulnerability in golang.org/x/crypto/ssh, published on 22 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-39834 in the wild and no public exploit code.

Affected packages and fixed versions:
- golang.org/x/crypto (Go): affected all versions; fixed in 0.52.0
- golang.org/x/crypto (Go): affected all versions; fixed in 0.52.0
- golang.org/x/crypto (Go): affected all versions; fixed in 0.52.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-39834/ (Markdown: https://insights.sbomify.com/CVE-2026-39834/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-39834
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-39834
- OSV: https://osv.dev/vulnerability/CVE-2026-39834

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-39834/
Summaries are generated and may contain mistakes; the official description above is the record.