# CVE-2025-47911: Quadratic parsing complexity in golang.org/x/net/html

> Attackers can cause denial of service by providing specially crafted HTML content to the Go HTML parser due to quadratic parsing complexity.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 Feb 2026
- **Updated:** 12 Feb 2026
- **Also known as:** AZL-76778, AZL-76781, AZL-76784, AZL-76793, AZL-76796, AZL-76802, AZL-76808, AZL-76818, AZL-76824, AZL-76830, AZL-76833, AZL-76836, AZL-76842, AZL-76845, AZL-76848, AZL-76859, AZL-76863, AZL-76868, AZL-76872, AZL-76883, AZL-76886, AZL-76893, AZL-76895, AZL-76898, AZL-76904, AZL-76910, AZL-76916, AZL-76922, AZL-76928, AZL-76935, AZL-76940, AZL-76944, AZL-76950, AZL-76955, AZL-76962, AZL-76977, AZL-76983, AZL-76992, AZL-77004, AZL-77007, AZL-77016, AZL-77019, AZL-77036, AZL-77046, AZL-77052, AZL-77067, AZL-77070, AZL-77079, AZL-77082, AZL-77096, AZL-77099, CLEANSTART-2026-AG17720, CLEANSTART-2026-ED72933, CLEANSTART-2026-EM69847, CLEANSTART-2026-GU58694, CLEANSTART-2026-OL43911, DEBIAN-CVE-2025-47911, ECHO-b0b4-7b11-de5d, GHSA-w4gw-w5jq-g9jh, GO-2026-4440, MINI-22cm-jr63-cg4r, MINI-22cv-3gx6-93xp, MINI-22pv-v93g-pwv2, MINI-23hh-7jw4-8mpp, MINI-24m9-6qf6-p7gp, MINI-24xr-rf4x-jj6m, MINI-26vc-frrv-g28w, MINI-284q-hr9v-836m, MINI-2867-jjrc-3hx3, MINI-28fw-84jw-fgp5, MINI-2c7x-gp3p-m354, MINI-2f85-9gvc-hmw3, MINI-2g8j-w7m8-c7mj, MINI-2gm8-pv48-pqq5, MINI-2gpm-wg3g-336h, MINI-2hvr-4jx7-2p7j, MINI-2j86-hc9w-5cc3, MINI-2p95-wf9p-5cfq, MINI-2prc-gmrj-4cjv, MINI-2q89-2445-6mrx, MINI-2q8h-vfhj-w5cc, MINI-2qjm-825f-m9wh, MINI-2r2j-7f9w-85h4, MINI-2r4c-453v-rcw2, MINI-2v2c-3r8g-8gxg, MINI-2v3c-fgjc-px79, MINI-2vcp-v85q-pjfw, MINI-2vhw-8xh2-rcp6, MINI-2whp-r636-xgp2, MINI-32pm-gmgx-cxw8, MINI-334v-h89c-xgv3, MINI-34mr-3mq2-g697, MINI-34wj-cfq3-jr46, MINI-36m6-fqcp-2pm3, MINI-37qq-mfv7-qj7r, MINI-37r8-4v3g-7cq7, MINI-38r5-3xmh-m2qh, MINI-3975-pqj2-xqq2, MINI-3cvc-jpwf-rmgv, MINI-3fjf-788c-5x9x, MINI-3fp7-r836-5mq4, MINI-3g98-2r3p-w2g4, MINI-3gx8-hhpr-w283, MINI-3h2p-frxf-6rr4, MINI-3h2r-g63w-5rx7, MINI-3h4m-p88p-868v, MINI-3hrm-5876-xxmv, MINI-3p25-m8p5-pq2p, MINI-3q4v-vm7r-9c7q, MINI-3q7v-7f43-jh5c, MINI-3q8x-ff5g-m6m3, MINI-3w6m-h9q2-4xw4, MINI-3xfr-hppp-g8w5, MINI-3xm8-q9mf-rfhh, MINI-3xvc-jp94-mf5x, MINI-4275-h5qq-h2rx, MINI-4564-56q6-wj43, MINI-45j4-hjrj-r5ch, MINI-45pc-66p4-x47g, MINI-47pg-jmpr-2j5r, MINI-484m-4j7c-42g4, MINI-48fj-rhwr-75h6, MINI-4cgf-hgh9-mhq5, MINI-4cgj-765r-jp6c, MINI-4f83-5589-pxmc, MINI-4gc4-vhm3-jw9x, MINI-4hvv-2967-86cr, MINI-4jfw-8gm5-2q46, MINI-4p6g-j67p-x6hw, MINI-4pqp-q388-vwm4, MINI-4q35-67rr-5vv4, MINI-4qrc-h67j-6f9w, MINI-4r42-5v7w-j45m, MINI-4vp5-8mmm-298x, MINI-4w85-x2qf-rj72, MINI-4wv4-8q2f-pvvj, MINI-4xx2-7mg2-gqrw, MINI-5274-2q96-mv47, MINI-535w-xf8x-2g3x, MINI-53h6-q4m8-9x88, MINI-54xw-f3q6-92hc, MINI-556q-7pfq-7rj4, MINI-55rr-rp2v-xvg9, MINI-56gr-7p36-69p5, MINI-56x6-c9wh-399w, MINI-57cc-6c49-5grv, MINI-584v-pj7w-57fj, MINI-59p3-5963-p2f9, MINI-5c6j-cxh2-wmxj, MINI-5crg-2pv5-84p2, MINI-5fjh-6cq3-5mc2, MINI-5hqc-5857-4fcv, MINI-5m6j-wq95-wxcr, MINI-5m72-48j4-5cwp, MINI-5m98-h4v8-xh66, MINI-5mxx-qhmf-jj47, MINI-5p67-ghp9-35v8, MINI-5prg-3j47-mgp3, MINI-5pxm-f575-rpgf, MINI-5q2m-24gp-q74w, MINI-5qjj-p248-2m29, MINI-5rx4-m9p6-v55q, MINI-5v99-2g87-fqhq, MINI-5vcp-5r6m-wjv7, MINI-5w29-f5mm-8x24, MINI-5wr5-xvf7-hx4h, MINI-5wxv-qjpg-wq8r, MINI-5xj5-mff9-jqhp, MINI-5xjg-mp2v-j886, MINI-5xv8-j3hp-2w35, MINI-629w-wrmf-qgw4, MINI-63vm-rqj8-2frv, MINI-6522-4pv2-g4h9, MINI-654j-jp6r-65px, MINI-65px-83gr-c8xw, MINI-66gh-r796-3jmh, MINI-66x4-r894-jxx4, MINI-6748-2w3f-xm7x, MINI-67qw-qr84-83q7, MINI-68x3-xv5f-8fpp, MINI-69f4-9366-q4rc, MINI-6fcm-m5g7-qcv3, MINI-6ffp-rr9r-7988, MINI-6fp9-6x65-x4hj, MINI-6g54-7rjj-qg53, MINI-6hpg-r2hw-hf66, MINI-6j2x-37rx-c9gx, MINI-6mm4-gh57-gfg4, MINI-6mmj-cmr5-x7qh, MINI-6mr6-p7rg-2mfj, MINI-6pcq-9rvv-q74j, MINI-6q74-8f5j-r48c, MINI-6qp7-vrrp-9qr8, MINI-6rmx-rxfr-jvmj, MINI-6v26-mw47-h8r3, MINI-6xqv-3vj8-h35f, MINI-74q7-84qw-ccqp, MINI-74r3-44vv-269c, MINI-74vp-4h6q-3892, MINI-75q5-3c8m-h6p5, MINI-75v8-f5xp-c6gc, MINI-75w4-hfx9-fgcv, MINI-76gm-jr29-6p97, MINI-778g-2v8v-76jm, MINI-77rv-66f9-h4wg, MINI-799m-p95w-h3wm, MINI-79j9-345h-rf3r, MINI-79mx-gvqv-q8r6, MINI-7cgp-9453-wp7m, MINI-7cwx-9xp6-588q, MINI-7fcq-hmc9-72h4, MINI-7h48-rfq5-5ffc, MINI-7h78-2hfj-rx2w, MINI-7h7j-3j96-74mr, MINI-7j43-jhc3-7p33, MINI-7ph7-6wpm-6mqf, MINI-7q4v-54hc-7hgx, MINI-7r7g-ffmr-p6h6, MINI-7rc5-mp6p-6g27, MINI-7rj9-qj3v-gg22, MINI-7rp6-vxrp-7v4p, MINI-7rwc-g3wc-6q9q, MINI-7vcg-96px-fv86, MINI-7w9v-v2hf-9cj4, MINI-7x35-rmg8-23vw, MINI-826h-5322-8g2m, MINI-8272-6v57-wfc5, MINI-82j8-pphx-3hm6, MINI-866x-vjrw-p78v, MINI-86h3-6774-rg36, MINI-88fx-w227-m5x8, MINI-88mj-x8r2-989x, MINI-892j-xgmr-p27w, MINI-8cw9-jfcv-68p6, MINI-8f8c-ww4g-7mhp, MINI-8f94-mfm8-q2w7, MINI-8ggr-fxvw-9f4f, MINI-8gjj-x6g9-q3j9, MINI-8h44-q6vr-qh9v, MINI-8m4j-hjc4-9xxx, MINI-8m8x-j8rx-4c3v, MINI-8mmv-5932-7pcw, MINI-8mx9-6g38-6pm3, MINI-8pjf-8979-2x62, MINI-8q46-9hj2-8gc7, MINI-8qfr-qp57-23c9, MINI-8qfv-qxqv-9mp6, MINI-8qfw-984x-pj2r, MINI-8qj8-4x79-777q, MINI-8r29-j8g6-5h6w, MINI-8vpj-2qmq-w36c, MINI-8w4p-rxph-57rc, MINI-8xgm-29r4-f63x, MINI-8xj6-2c3q-9mhq, MINI-92fc-9jhg-qjx9, MINI-93h7-7j2c-w8jm, MINI-93wf-668m-j3q7, MINI-94vw-qfc4-f8rx, MINI-94vx-7qw7-xvg2, MINI-959p-m5pq-h57f, MINI-966j-5638-cxfm, MINI-97fm-qqmp-g9m4, MINI-97qj-jgmg-6jq7, MINI-98fh-mpc8-m8cx, MINI-98wg-955m-4597, MINI-98x2-cwfj-w3fh, MINI-99w9-76m9-5gp9, MINI-9cc8-7f4x-9j2m, MINI-9cwx-c378-ppfj, MINI-9g3x-wh89-8h75, MINI-9hxh-f4mv-7ch6, MINI-9mjr-r59v-hqv2, MINI-9q24-f2fc-392p, MINI-9r5x-v2hx-x3qj, MINI-9r6v-3qr8-jrxm, MINI-9r7c-4wc8-4r4v, MINI-9rqj-frmh-cpvr, MINI-9vjq-jvmq-px24, MINI-9vw9-5p6f-7f5r, MINI-9xfv-g9r5-mm84, MINI-c2rx-frhf-5q7h, MINI-c39v-8px2-hr28, MINI-c428-8958-g7pw, MINI-c4gp-v5hm-hvr9, MINI-c5f2-fjx9-6rfr, MINI-c6fq-pw5w-hprq, MINI-c7w6-cqfw-44x4, MINI-c9hj-vf4f-37q8, MINI-c9mh-8c39-r7w5, MINI-c9vx-9cq9-2m9r, MINI-cgwr-6f39-8wcx, MINI-chc4-wjv6-gqmh, MINI-cj65-mc6m-w27q, MINI-cm3v-w3cr-pv5c, MINI-cm9g-h8xh-8g2c, MINI-cpg7-95ww-c545, MINI-cr74-qcj3-2hv6, MINI-cwgc-f52j-7xrg, MINI-f2p9-93g8-5jf5, MINI-f36x-662r-2mqh, MINI-f3r4-jqfm-rq94, MINI-f4v8-fp5r-vj73, MINI-f58w-m5h8-ccvp, MINI-f68f-3gxq-5wj9, MINI-f6gw-6jfh-9883, MINI-f78c-xpg6-qhw5, MINI-f7wx-4p22-c82g, MINI-f9rx-j56w-h5q8, MINI-f9x5-pfjw-mr4w, MINI-ff98-cmx4-6w97, MINI-ffvm-9qqf-64m3, MINI-ffxf-fqmv-4px8, MINI-fg2j-mf33-r2hm, MINI-fhvx-v758-g738, MINI-fhxr-j7x6-5842, MINI-fqr8-rqr7-w76q, MINI-fwch-rq99-rgwh, MINI-fwfh-p5rq-fx5w, MINI-fwvv-5g56-qj9f, MINI-fx46-qx9p-5r7j, MINI-g227-mw2f-fg4j, MINI-g2g3-p6p3-m346, MINI-g2jg-w9gx-gvx3, MINI-g2pj-m4xh-xcp2, MINI-g2w3-wfhp-m736, MINI-g38v-8cmf-g433, MINI-g3gx-mwhw-mj3x, MINI-g4vw-vxvm-fmq5, MINI-g4x2-p42p-mwv4, MINI-g6q3-vgmg-p8gw, MINI-g75w-75cm-qhcr, MINI-g84f-5283-7g8r, MINI-g8ff-h8hp-3jr6, MINI-g9rh-mv4c-cfvq, MINI-ggjv-h8rv-q589, MINI-gh6w-h33w-r4rr, MINI-ghh6-552p-77rf, MINI-gjcr-mcww-wqh2, MINI-gpjh-3gm6-433h, MINI-gr2g-6wxr-79f2, MINI-gr33-2jcv-8pf2, MINI-gr8x-3p6f-5m2j, MINI-grh6-wj34-r9h5, MINI-grm7-5wp9-f4x6, MINI-gvf6-3h66-9vhj, MINI-gvph-wrvq-xwqf, MINI-gwj8-gq78-v358, MINI-gx53-96vj-782r, MINI-h383-4m78-rgq7, MINI-h4g2-xf4x-w6qw, MINI-h4q5-3539-9h5g, MINI-h5fv-g346-7wwf, MINI-h6f2-c47f-222q, MINI-h856-9ch6-j4v2, MINI-h8jg-2j26-r85x, MINI-h96r-rjc6-p73m, MINI-hc3f-4hxj-r7v7, MINI-hfwj-hr52-6gqx, MINI-hfx3-p62x-f57h, MINI-hhwp-79xv-gh6p, MINI-hj2m-92gc-x7q8, MINI-hmc5-4944-mmr7, MINI-hp5g-6fcq-c498, MINI-hqmf-7vjq-9gv6, MINI-hr83-6wpq-r5h8, MINI-hrmf-c7v6-gh7m, MINI-hvp7-hrh9-4qc8, MINI-hvrj-4w2q-2379, MINI-hw2j-4jmj-ff4f, MINI-hwxv-3m5h-4v46, MINI-hxj6-22f2-ggg4, MINI-hxv9-h9rg-j8hw, MINI-j26c-rqp3-qw37, MINI-j45v-qp56-wc5m, MINI-j524-65wx-3r6m, MINI-j65w-rgj8-57gq, MINI-j7cj-g85q-66rg, MINI-j7j9-63p7-6wq3, MINI-j92r-c3r4-3796, MINI-j9cc-4692-9f62, MINI-jcjj-cwr4-q244, MINI-jcxr-xvw3-rjh6, MINI-jfjj-46cp-7gj2, MINI-jfp8-mp4w-ch56, MINI-jfqq-j6qw-hg28, MINI-jgqp-9vgr-fcp4, MINI-jjgr-wp66-3q96, MINI-jjm5-cw3w-pqwg, MINI-jm6m-p569-683r, MINI-jm8v-p3hp-p5h8, MINI-jpvh-26hr-397p, MINI-jrrp-m54v-h9fp, MINI-jrwh-rm27-36p9, MINI-jvq2-6fr3-m9jq, MINI-jxmh-h3pj-p8g3, MINI-jxp4-5857-mm26, MINI-m239-j48w-jwx3, MINI-m2rf-qm87-69vg, MINI-m344-5f6q-jp37, MINI-m3fj-5hvc-2pgf, MINI-m4qr-79x8-xhxx, MINI-m4w7-q445-hc6w, MINI-m62w-2p5h-ffvf, MINI-m66w-cq4w-6qm8, MINI-m6r7-527h-frg9, MINI-m744-rgg5-8h8f, MINI-m8gf-2566-2845, MINI-m8wr-w6cw-6rf4, MINI-m9c5-248x-cfw6, MINI-mc84-fj74-mhmv, MINI-mcxv-j8v2-2466, MINI-mf39-2r94-r69p, MINI-mfqq-wvmf-hjfx, MINI-mfx6-82hm-5536, MINI-mg7r-hh7v-fgv6, MINI-mgxw-jvh3-8994, MINI-mhfv-hqxr-43p9, MINI-mhrr-p94w-mcch, MINI-mjcr-2qjp-r825, MINI-mjm8-3ghv-wc54, MINI-mjrc-7749-h6cq, MINI-mmc6-97pm-857p, MINI-mrgr-vgxc-gw9f, MINI-mrwg-hvhx-4c7m, MINI-mw4x-jwrx-947h, MINI-mx5m-x6x7-5jj5, MINI-p24j-h45g-6pr2, MINI-p3xh-2pw7-7pf6, MINI-p49x-qcc8-8757, MINI-p52v-rgrw-2gc7, MINI-p5v3-g36f-4357, MINI-p67f-jqmw-8pxv, MINI-p6j9-crph-p64m, MINI-p856-fw38-jwvg, MINI-p8cp-v64p-q7fg, MINI-p8qq-jgfw-6rwq, MINI-p975-52v4-jcp7, MINI-p9v9-rr87-7fm5, MINI-pcr5-rjh2-f6gf, MINI-pf8p-whgm-m9f7, MINI-pg49-3xrg-rggm, MINI-pjhr-p8mj-g44v, MINI-pm46-phcw-3p2f, MINI-pmgq-7pfj-fvp4, MINI-pp97-8ghp-mqp2, MINI-ppg6-6592-974w, MINI-ppgv-mwfc-7c2c, MINI-pphw-vm87-cpxq, MINI-pr42-wfh8-hjfp, MINI-pv8w-j568-x9vj, MINI-pw9q-47vx-cj4c, MINI-pwr6-295c-2pph, MINI-q5p6-wf2q-qf5p, MINI-q97r-r8qp-c7p9, MINI-q9ph-r5rh-rhhw, MINI-q9wc-7r87-8v5v, MINI-q9x5-fjc4-7c23, MINI-qcxg-g5w9-h3g7, MINI-qhj4-8m6p-rmw5, MINI-qjhg-wv9f-g43x, MINI-qm49-7g6f-g4rm, MINI-qmc7-p4c2-465r, MINI-qmcm-vjfp-76x2, MINI-qmgc-c5q7-2cgq, MINI-qpj9-6m69-w6rv, MINI-qpv6-j527-m6v5, MINI-qqmw-c3x2-759x, MINI-qrw5-29p5-5hhg, MINI-qv3x-834f-f3q6, MINI-qvjx-5pfj-7rpp, MINI-qxqg-9fqv-rwxc, MINI-r35v-vh96-vr6m, MINI-r3f4-2mjq-j9j2, MINI-r3xj-p8pj-vwmg, MINI-r3xm-8vqm-xw84, MINI-r4hr-pj3v-p8xw, MINI-r526-9626-5cvh, MINI-r59m-92xm-6xpw, MINI-r634-3w47-rg4c, MINI-r8rv-5hhw-q98h, MINI-r92h-cg7f-6vq6, MINI-r9h4-2mg8-w592, MINI-r9vh-7c4q-pfj6, MINI-rc62-gw96-qh2m, MINI-rcxm-f63x-75hx, MINI-rf3v-gm54-vccj, MINI-rgrf-fq48-4qx4, MINI-rhq6-hqw6-6cfw, MINI-rjh8-phqm-8852, MINI-rjxm-r3wq-fmgh, MINI-rjxm-vg39-v3jx, MINI-rmmw-v3wf-97vc, MINI-rmxh-g59h-3cp2, MINI-rpqp-q55p-vvg8, MINI-rqmc-cw78-j529, MINI-rqq6-j67r-8v64, MINI-rqwj-m463-7vqm, MINI-rwcv-53h2-h7jp, MINI-rxxf-9h4v-rjxr, MINI-v275-qmcr-q393, MINI-v3gw-grjh-chj8, MINI-v3vp-hhm5-c9gx, MINI-v46x-jxvh-8c97, MINI-v4qr-g4r6-x2r3, MINI-v53h-jmxh-gqw5, MINI-v634-pc3h-543x, MINI-v7q3-gfjm-qvx5, MINI-v7v7-j2cr-g45g, MINI-vc43-6v33-39gg, MINI-vfq3-wv25-878h, MINI-vg5g-6rc3-97p8, MINI-vh76-8247-7x95, MINI-vhf4-4pj8-vwmf, MINI-vjw8-3w6v-g557, MINI-vmmm-6gmq-x4ph, MINI-vp7v-qrjr-3xq4, MINI-vq7v-jq5p-2fwg, MINI-vv3h-rc36-hv6h, MINI-vwqc-2mfx-33rr, MINI-w262-64q5-778h, MINI-w344-f2h5-2xp3, MINI-w5qw-7x66-6mjq, MINI-w675-ph68-cwhv, MINI-w753-855x-pm92, MINI-w79v-6r4v-xrfp, MINI-w884-x4pc-vm4h, MINI-w943-7fcx-p66r, MINI-w9wg-x7c6-5whm, MINI-wf97-q3h3-39mr, MINI-wfqg-57c8-9jxc, MINI-wfqq-c37j-m22j, MINI-wg9f-h4p7-p3p4, MINI-wgx4-99qg-gp9f, MINI-wh36-qfqw-f62r, MINI-wh7v-pjjf-q2m6, MINI-wh9f-x2gf-c74v, MINI-wjjr-qm5h-2pmq, MINI-wjq8-x673-q5ff, MINI-wp9v-w52g-4g25, MINI-wph6-f4p4-j632, MINI-wq2v-f84r-4mh6, MINI-wqhh-g44g-53q4, MINI-wwfx-49m7-x5v2, MINI-wwq3-g767-rq99, MINI-wx3w-8p3f-8vcx, MINI-wx5p-64xw-c4jr, MINI-x23f-pgc4-644c, MINI-x2w7-2jvf-94wq, MINI-x3r4-7h6h-9j9g, MINI-x3rw-6hr7-f8f5, MINI-x454-jggx-f4jh, MINI-x4rw-jqg9-7888, MINI-x56q-mgfm-j9h4, MINI-x722-jm5g-jcg9, MINI-x747-pfh7-hrqw, MINI-x74p-rr54-4wfv, MINI-x7r8-vwhq-w2mp, MINI-x969-w6p2-q747, MINI-xc3x-j322-m7jm, MINI-xcmr-rmgh-hfh6, MINI-xf9w-jv32-fgx8, MINI-xfmg-gfc6-259g, MINI-xgp4-xq45-7wrp, MINI-xh7h-hcvg-pm5j, MINI-xh87-3774-w677, MINI-xq7f-cww3-q5x3, MINI-xr5m-chxh-vmqm, MINI-xrxv-xgv9-ph5p, MINI-xvgv-fvq7-p397, MINI-xw97-qghg-4r8j, MINI-xwwv-xwj4-j9c3, MINI-xx52-46qv-w3pf, MINI-xxgf-x485-pf9g, ROOT-APP-GOBINARY-CVE-2025-47911, UBUNTU-CVE-2025-47911, openSUSE-SU-2025:15624-1, openSUSE-SU-2025:15647-1, openSUSE-SU-2025:15689-1

## What is CVE-2025-47911?

CVE-2025-47911 is a medium-severity denial of service vulnerability in golang.org/x/net/html, published on 5 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.

## Which versions are affected by CVE-2025-47911?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `golang.org/x/net/html` | Go | All versions | 0.45.0 |
| `golang.org/x/net/html` | Go | All versions | 0.45.0 |
| `golang.org/x/net` | Go | All versions | 0.45.0 |
| `gomuks` | openSUSE:Tumbleweed | All versions | 0.3.1-2.1 |
| `ollama` | openSUSE:Tumbleweed | All versions | 0.12.6-1.1 |
| `v2ray-core` | openSUSE:Tumbleweed | All versions | 5.40.0-1.1 |

Products: Go Html.

## How do I fix CVE-2025-47911?

Upgrade golang.org/x/net/html to 0.45.0 or later.

## Is CVE-2025-47911 being exploited?

There is no known exploitation of CVE-2025-47911 in the wild and no public exploit code.

## Other vulnerabilities in golang.org/x/net/html

- [CVE-2025-58190](https://insights.sbomify.com/CVE-2025-58190/): Infinite parsing loop in golang.org/x/net (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-47911 and fix it if it is affected.

What it is: CVE-2025-47911 is a medium-severity denial of service vulnerability in golang.org/x/net/html, published on 5 Feb 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-2025-47911 in the wild and no public exploit code.

Affected packages and fixed versions:
- golang.org/x/net/html (Go): affected all versions; fixed in 0.45.0
- golang.org/x/net/html (Go): affected all versions; fixed in 0.45.0
- golang.org/x/net (Go): affected all versions; fixed in 0.45.0

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-2025-47911/ (Markdown: https://insights.sbomify.com/CVE-2025-47911/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-47911
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-47911
- OSV: https://osv.dev/vulnerability/CVE-2025-47911

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-47911/
Summaries are generated and may contain mistakes; the official description above is the record.
