# CVE-2026-81870: OpenTelemetry-Go: Exporter config logging may leak endpoint URLs in info logs

> Enabling Info-level logging in OpenTelemetry-Go may leak internal collector endpoints and embedded credentials to log files.

- **Severity:** Low 2.0 (`CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 Sep 2026
- **Updated:** 17 Sep 2026
- **Also known as:** AZL-103052, AZL-103077, AZL-103082, AZL-103116, AZL-103125, AZL-103128, AZL-103134, AZL-103146, AZL-103152, AZL-103158, AZL-103164, AZL-103167, AZL-103173, AZL-103176, AZL-103200, AZL-103215, AZL-103218, AZL-103236, AZL-103242, AZL-103251, AZL-103260, CLEANSTART-2026-AL44368, CLEANSTART-2026-DG38961, CLEANSTART-2026-DT35013, CLEANSTART-2026-EM98221, CLEANSTART-2026-ER31598, CLEANSTART-2026-FG96390, CLEANSTART-2026-GY33381, CLEANSTART-2026-HD45306, CLEANSTART-2026-HZ96521, CLEANSTART-2026-JN14526, CLEANSTART-2026-JT34415, CLEANSTART-2026-KN43296, CLEANSTART-2026-KO77933, CLEANSTART-2026-LD90473, CLEANSTART-2026-MJ34936, CLEANSTART-2026-MV72280, CLEANSTART-2026-NI95909, CLEANSTART-2026-OF76171, CLEANSTART-2026-RC39573, CLEANSTART-2026-RG18642, CLEANSTART-2026-SA35538, CLEANSTART-2026-SJ06865, CLEANSTART-2026-ST13970, CLEANSTART-2026-TR09708, CLEANSTART-2026-UR89459, CLEANSTART-2026-WJ82120, CLEANSTART-2026-WR16764, CLEANSTART-2026-YB58885, CLEANSTART-2026-YT94569, CLEANSTART-2026-YV85299, CLEANSTART-2026-ZS73776, CLEANSTART-2026-ZU92806, DEBIAN-CVE-2026-81870, ECHO-d9dd-1c64-6ec8, GHSA-8wmf-6v46-5gfg, GO-2026-6505, MINI-2225-w5p6-xcw2, MINI-22h6-w52h-gcx6, MINI-22mr-29qc-r9v3, MINI-22w3-hfhh-9jj7, MINI-255h-546v-r36x, MINI-26cc-w5cc-rw9w, MINI-2755-vphj-2c6x, MINI-27f2-q6vj-pqp7, MINI-27m4-9g6p-w95m, MINI-27mh-hg95-9f3p, MINI-27p4-j2j5-mj2r, MINI-28x3-pf24-96fw, MINI-2928-rcxr-h4ch, MINI-29xf-hwcg-5qgx, MINI-2cc3-h944-795v, MINI-2cgm-x3hj-wpgh, MINI-2cr4-8v57-rw96, MINI-2cxx-pqpx-6w97, MINI-2gmf-vvvm-ch45, MINI-2gw9-94x2-q87m, MINI-2j42-pq7r-rxf7, MINI-2jmj-w5j8-m473, MINI-2m46-f9j9-6842, MINI-2mr4-mp22-crgh, MINI-2p5v-332h-wqj8, MINI-2ph5-f3gr-56g4, MINI-2pq5-8wvg-3mg2, MINI-2q5m-69wx-8rhm, MINI-2qch-jmq9-pqrv, MINI-2qp5-hg24-h2hf, MINI-2qqp-99xq-mf2h, MINI-2rwh-r9gj-8gr7, MINI-2rx4-9wqv-x799, MINI-2vjm-p77c-vrwc, MINI-2w67-3g5g-73q9, MINI-2x36-c2p8-q5ph, MINI-2x5m-882g-p35f, MINI-2x7m-m9m7-v532, MINI-2xx7-9gpv-4p44, MINI-33w8-mqqr-w4qx, MINI-34fv-w72g-cqpj, MINI-34hh-58jq-r69f, MINI-356f-jq4x-jr95, MINI-362h-qf8j-mv46, MINI-378v-76gc-gqhh, MINI-37cm-x6v9-j5xc, MINI-37q9-fqgv-66f9, MINI-37qm-mjgq-vx59, MINI-38wm-xcqg-p52h, MINI-398m-4vr2-q448, MINI-39c2-62j2-c2gr, MINI-39c7-v4gg-c4qc, MINI-39p4-rf2x-qjcp, MINI-39rq-w88m-4c68, MINI-3c56-8c58-vc45, MINI-3f7f-3pmh-rc2j, MINI-3f9h-w7m6-2rjc, MINI-3fxq-r2x3-hrh3, MINI-3gxp-wphx-559j, MINI-3jgq-x28w-q9c7, MINI-3jrr-jw97-8jgg, MINI-3jxh-wmxq-gpgg, MINI-3mc6-52jr-qm8c, MINI-3mgx-fjj5-r7fq, MINI-3mqq-268r-4hfg, MINI-3phw-6c5m-3jpm, MINI-3pq3-rg73-qv28, MINI-3qgx-jrh6-92cv, MINI-3v3j-87vw-494r, MINI-3vhx-c8wq-m58p, MINI-3w68-ppww-fj23, MINI-3w8c-h22c-q8h6, MINI-3wvm-j9xm-x742, MINI-422q-qv8j-x75p, MINI-438h-354x-9jrw, MINI-43g2-r827-7cch, MINI-4464-pvqq-5pgf, MINI-4543-r7p3-jv2w, MINI-45qc-pq69-6mcg, MINI-46cx-gph7-r68f, MINI-472w-59gq-8w5f, MINI-4847-3w33-cx4j, MINI-48q3-j723-rwcq, MINI-48r4-7w29-p4w4, MINI-48r6-6mvg-p7qh, MINI-48x4-cr28-w985, MINI-494r-722v-r5f3, MINI-4cj2-3qxh-7m84, MINI-4cj4-9hv3-4p37, MINI-4cm8-hqj6-v8q7, MINI-4cr8-x2jg-fx47, MINI-4f33-2j52-976m, MINI-4f46-89jw-xrc8, MINI-4fh3-h6qf-hfqj, MINI-4frv-3jxf-r547, MINI-4g54-83q8-pv5r, MINI-4gg7-hcr4-xv9p, MINI-4hp5-h3h2-5xqr, MINI-4m7m-4hr6-vrvm, MINI-4mhg-fr65-j6x8, MINI-4pxm-qhrh-8rrc, MINI-4q68-h5pj-mmx3, MINI-4qvh-gq48-8xq2, MINI-4r2h-p3hc-45hg, MINI-4r4r-v84f-9j7f, MINI-4v9w-vq7j-7ccm, MINI-4vm5-c8hv-45mr, MINI-4vp8-hxv3-qjhp, MINI-4vrp-f8m3-ggfm, MINI-4xcf-cxxh-c9r6, MINI-52mq-8fff-p3w8, MINI-53m2-8wwf-m55p, MINI-53qr-hg2w-mq34, MINI-546p-487c-9x45, MINI-54pc-pwjj-q8h9, MINI-563q-8q7x-4pc7, MINI-56gh-9r48-85x3, MINI-56p5-9x73-f88g, MINI-59q3-f658-fffq, MINI-59rp-jfxf-5983, MINI-5cm2-qcwp-wfjr, MINI-5cqq-6mvp-87vp, MINI-5f63-68wm-wg95, MINI-5fpj-3662-w494, MINI-5fqr-mx3j-mc87, MINI-5gvj-c665-hch6, MINI-5h3f-rhp3-mvwx, MINI-5hc7-58fp-g8xw, MINI-5hv7-p5pc-7jh2, MINI-5hwh-c97m-hppg, MINI-5m8q-xv77-g9jh, MINI-5mhg-8j57-q7qm, MINI-5p78-2v6m-6hfw, MINI-5pw7-vvjf-vw3f, MINI-5q5f-fhr4-7p39, MINI-5r3g-229h-pj3w, MINI-5r48-x2p4-8hc8, MINI-5r5r-45f6-hmr6, MINI-5v3m-cwm3-93px, MINI-5v8v-76g4-hq4x, MINI-5vm9-xw28-f3q6, MINI-5w49-p8p9-3gpr, MINI-5w78-68q2-2h46, MINI-5w7g-cjv8-8fcv, MINI-5wf7-vj5q-vq4p, MINI-5wg6-w8vv-hpvr, MINI-5wqr-vwgw-h86x, MINI-5x65-8gg5-292h, MINI-5xc8-ffpg-2cph, MINI-622p-8686-w7hp, MINI-622r-fj46-5mvr, MINI-6238-hxcm-qcg6, MINI-63fx-7j2w-g9hp, MINI-645w-7q2j-fq28, MINI-648p-j37c-g4q4, MINI-655m-6x2c-rwv4, MINI-663p-4x5c-6g57, MINI-664m-gj79-wvj7, MINI-66fr-gff9-6pw3, MINI-66j4-frrc-p4r3, MINI-66wx-96j2-c2x5, MINI-67wv-hjg3-fq32, MINI-6988-wr5q-7p5g, MINI-69cx-6rpr-xpq7, MINI-6cfq-h9hv-r42p, MINI-6f24-m9mj-wm7h, MINI-6f6w-fgrr-8q5c, MINI-6f7g-rq6m-mqw3, MINI-6h29-94pj-7652, MINI-6hmf-4c9w-52xm, MINI-6j54-gc4j-xcmm, MINI-6jgq-q3c4-85mp, MINI-6jmw-8pg8-9xx4, MINI-6m22-p73r-m8fc, MINI-6m7g-cw3c-q8hf, MINI-6m95-8cjw-h686, MINI-6q2q-v96m-hr8w, MINI-6q98-52cf-cwxr, MINI-6qgw-mj2w-v48r, MINI-6r7r-vv5h-wv2m, MINI-6rqm-3xhj-45g2, MINI-6w3f-w7wj-5w55, MINI-6wg5-hcfj-w9r9, MINI-6xm3-3cj8-fwjr, MINI-6xmr-535q-j37m, MINI-722m-66m4-8qv4, MINI-732w-x73h-45x6, MINI-7354-6mvm-97wx, MINI-747p-qh7m-f6c5, MINI-74cq-rj2q-cfh2, MINI-74f3-3hrw-7w8f, MINI-74h8-8w92-83jg, MINI-74p7-wmjc-p9q9, MINI-74vr-gc3j-7v45, MINI-754j-pqv4-hvjx, MINI-78j6-vgqm-qj8r, MINI-78jq-f6cj-fcp7, MINI-7929-3w9m-8xwp, MINI-792v-h22p-74g5, MINI-7934-p72g-gm4p, MINI-79hp-vh8m-j855, MINI-79r4-mxmq-r9rm, MINI-7f6q-338w-279p, MINI-7f9c-x955-pm3j, MINI-7fm4-2qqh-4783, MINI-7fmf-hgf4-344q, MINI-7fv5-7g9g-x6h3, MINI-7fxj-4m73-vmwc, MINI-7g67-c366-683f, MINI-7gx2-g3c7-mj6q, MINI-7hf8-p6cg-2f6p, MINI-7hgg-vxwp-j7cc, MINI-7hp7-hpvh-hr3p, MINI-7j7w-9mxx-wvm3, MINI-7jvp-cmpc-x68v, MINI-7m7c-rx34-vcw6, MINI-7m8g-rqh2-fp3q, MINI-7mch-6j48-qqvw, MINI-7p2g-4f9r-66wm, MINI-7p2w-p2w4-ccq7, MINI-7p5v-h5pc-26rm, MINI-7p7q-c6mg-gfqx, MINI-7pg4-jc66-p9vw, MINI-7q8c-4wq7-379m, MINI-7qfc-75w6-vjf5, MINI-7r29-wh56-4xqp, MINI-7r9x-8c3w-8hx3, MINI-7rw9-3q68-7g9r, MINI-7vvp-c572-q8cm, MINI-7xhf-9622-5hxx, MINI-7xx4-75jm-vhwg, MINI-7xxr-v6c5-j2fx, MINI-82rw-27rx-h679, MINI-82x8-xcrx-785v, MINI-832m-jqpj-4vwj, MINI-83gr-5f6w-37hr, MINI-847f-x83g-r6fh, MINI-85g9-9792-9mw8, MINI-86h4-9cg3-7rp7, MINI-86px-5g7f-jm2m, MINI-8727-qvw2-2g5r, MINI-8795-qj66-mr55, MINI-894h-r3j6-v95v, MINI-89jw-89jq-g3mp, MINI-8c43-442j-3hmq, MINI-8c4m-6rrw-c974, MINI-8chq-phpc-5xvc, MINI-8cwv-3g6r-9499, MINI-8fmv-9pf2-x986, MINI-8gjm-x379-pwh2, MINI-8h52-hfj5-wppq, MINI-8h7h-j34w-66mv, MINI-8hc2-q52c-c2wv, MINI-8hv8-hmv2-vpxq, MINI-8j94-72h3-c3x7, MINI-8jv6-g89p-q7rj, MINI-8jvj-5jc3-6pvr, MINI-8m5p-6c4w-rqfr, MINI-8m98-8cvw-f72h, MINI-8mmw-45r2-m9xg, MINI-8mxw-pjpw-vxxv, MINI-8p79-pgm7-4v22, MINI-8phv-4rp9-xr4h, MINI-8qc3-xjhf-qv7w, MINI-8r26-7hhr-9vqx, MINI-8rwg-6c5h-4j68, MINI-8vpc-54c3-j5fp, MINI-8w94-hhch-pmx8, MINI-8wcg-mhfv-38rw, MINI-8wgm-jg6v-957w, MINI-8wvm-gxw9-q6qc, MINI-8x7p-2wp3-rjmr, MINI-8xxv-6c6v-f9mg, MINI-92fr-qjfp-xgxq, MINI-92q7-jg57-cw7j, MINI-935m-g592-p4fv, MINI-935x-8537-9vjq, MINI-939m-gw6c-h2gv, MINI-958r-865p-957m, MINI-95m6-6gqr-7vrx, MINI-9655-8895-7843, MINI-9799-8rvw-pmg4, MINI-97fj-xq85-9wv8, MINI-97fm-pc69-pcr6, MINI-97h4-4g7j-j6wx, MINI-97v7-45p7-8368, MINI-98p2-6m7h-c752, MINI-9938-5769-f696, MINI-99pv-3qrh-mc42, MINI-9c24-w9c4-q33x, MINI-9c4q-7r55-xmmw, MINI-9f76-v3cv-rj2j, MINI-9f7p-mmh2-pqjh, MINI-9fxr-wffc-7v2r, MINI-9g94-8652-pq9p, MINI-9gw6-c4jg-v4r9, MINI-9h63-rjp8-46cc, MINI-9hv9-4p8m-788v, MINI-9j5m-5rhj-h2mj, MINI-9m7v-34jm-73r7, MINI-9mcj-j9v3-rx66, MINI-9mfg-2fv5-46j3, MINI-9pc3-gj9m-88r5, MINI-9q78-gqjj-h6r2, MINI-9qgh-v6wm-f59v, MINI-9rcq-pgxc-rm69, MINI-9v7j-847h-xw3g, MINI-9vrc-32gv-6664, MINI-9vxw-j9j2-3p68, MINI-9x75-w734-hrg7, MINI-9xf7-8p56-7wm4, MINI-c229-4fvf-86jv, MINI-c2h4-6j43-66f5, MINI-c2hx-88vv-rx56, MINI-c2jw-2wr7-2q6m, MINI-c2q3-r78h-v6j7, MINI-c2v6-qgjv-j5jh, MINI-c2v9-623w-x79v, MINI-c3hj-9246-v447, MINI-c3x7-r5g5-m6wh, MINI-c4gg-9qw9-gvh2, MINI-c536-whrc-fjrx, MINI-c69p-gvfq-f3c4, MINI-c6fq-9483-2m4q, MINI-c75j-63wh-26mp, MINI-c78w-vp97-vm9p, MINI-c7rw-g7cv-rrrf, MINI-c8pm-jqv7-p385, MINI-c9fg-x37x-fgjj, MINI-c9hh-9479-h4f6, MINI-c9vc-grwj-9r76, MINI-c9vx-c2w3-pw28, MINI-cc32-mp47-qw6v, MINI-ccfm-p6gm-5g8x, MINI-cchv-54j4-79p3, MINI-cf62-xc37-wxgw, MINI-cfwp-ccrp-6q7q, MINI-cfwv-v84c-r93j, MINI-cgwm-mm97-m9j6, MINI-ch78-3pch-7x75, MINI-ch9j-rcjg-2x53, MINI-cj8h-7h44-3h7j, MINI-cj8v-8c47-p95q, MINI-cjcq-65qf-pppg, MINI-cm93-jr9c-3rf5, MINI-cmc8-x2wh-5955, MINI-cpw3-qwgx-5535, MINI-cpxm-hh7x-886w, MINI-cqr2-qghc-p4wm, MINI-cr7m-7jp4-gq5h, MINI-crcg-fc6x-f32w, MINI-cvmf-6xg7-cw58, MINI-cw75-3wm5-mmcc, MINI-cwpf-fcg7-g28g, MINI-cx77-fgqg-cxjj, MINI-f285-5532-vrq3, MINI-f3jf-5wfh-q85g, MINI-f3xf-qhf3-c8xq, MINI-f469-5wpx-j529, MINI-f56f-x93v-hw9j, MINI-f5px-rw74-xr7r, MINI-f5q8-7gqx-6869, MINI-f64p-qmg9-42qf, MINI-f6f6-r5vx-5h28, MINI-f6pp-8p9j-fg3v, MINI-f7x5-q564-4f35, MINI-f85x-hqp9-8vg8, MINI-f87w-ch7v-h89q, MINI-f93v-5r6g-mvc7, MINI-f9q8-rxfq-3pr5, MINI-fcfr-w5mf-7m67, MINI-fcqj-vhc4-6254, MINI-ff27-mf98-q224, MINI-ff6x-wqj9-53h5, MINI-fgc9-g9v8-pff4, MINI-fgv2-xqgv-233g, MINI-fhg7-gvqg-8h4g, MINI-fj6f-qqg9-gqxw, MINI-fj8x-6jhc-h2xr, MINI-fmjr-4c7q-r4cq, MINI-fp55-9428-m8w2, MINI-fqf3-gm7f-2j3q, MINI-frg8-rvfq-786c, MINI-fv2j-m9rw-p92w, MINI-fvgh-w9r5-6ww4, MINI-fvjj-gr5c-pv8g, MINI-fvqc-pcgp-6vrx, MINI-fx35-px28-4xg9, MINI-fx76-3mgg-pwrq, MINI-g24x-jx2j-g3j7, MINI-g2cj-5pqw-vm3g, MINI-g2mw-vg7r-5vp3, MINI-g39f-4496-j8vm, MINI-g3fr-7vf2-8h7h, MINI-g3hh-j5w9-c6m3, MINI-g45h-82j9-67fx, MINI-g4cr-rx64-xr49, MINI-g4mh-56rq-58r5, MINI-g4q4-6ggf-8734, MINI-g5v7-89wr-7x58, MINI-g5x4-8mx6-2xff, MINI-g79c-rhc7-gqrx, MINI-g7f5-3254-6343, MINI-g867-g2q5-w9cv, MINI-g8j6-mv6m-6v8q, MINI-g8xq-gg89-r6pv, MINI-gc9x-xr74-g3fq, MINI-gcg8-9xp5-ff48, MINI-gfmc-q866-x3p9, MINI-gg32-65mv-vfgj, MINI-ggc2-jhgw-w3c9, MINI-ggxm-xr95-7m47, MINI-gj39-fjw4-2w85, MINI-gj85-84c9-jg7c, MINI-gjp8-672j-wr82, MINI-gjw3-v2h5-4h55, MINI-gp3c-gm9w-4x88, MINI-gp8c-f788-88rq, MINI-gpvx-cq5w-hjxq, MINI-gpw9-w6pr-ghf6, MINI-grw8-pcgm-46r2, MINI-grxm-cg79-mrcc, MINI-gvg9-342j-5xqx, MINI-gvxp-855h-643v, MINI-gx2r-868c-g5xp, MINI-gxg6-7xq5-qrqx, MINI-gxg6-9mfg-488g, MINI-gxhx-h3v8-hx2r, MINI-gxmf-8246-8xh3, MINI-h2wv-2vxf-phv2, MINI-h362-94qv-7jw2, MINI-h37r-62pr-f282, MINI-h3f3-f99m-pc9c, MINI-h45x-2m9j-rv34, MINI-h4wj-73hj-3653, MINI-h53c-32vr-j4qr, MINI-h55f-qxw5-qprx, MINI-h62f-8xmf-w3vg, MINI-h6c5-prw9-gr3r, MINI-h6rr-jcgm-5m7h, MINI-h7gh-m92f-wqqx, MINI-h7vc-pr22-qcj3, MINI-h82x-8jqv-mw62, MINI-h88x-vwjp-fcc9, MINI-h8fq-9222-73jj, MINI-h8qw-qhfc-phf5, MINI-h933-5r7p-mfc6, MINI-h9r6-gfq5-9h22, MINI-h9ww-99xc-f8mv, MINI-hcfx-r22j-ww6h, MINI-hf7v-fcg7-jmh7, MINI-hf97-fqcq-2236, MINI-hff6-gm9g-q9jc, MINI-hfq9-89v2-gw9g, MINI-hgj8-88xq-3jgj, MINI-hhc9-29c2-hj34, MINI-hhcp-9vr6-7w35, MINI-hhqh-gvfw-2fwv, MINI-hmh3-97cj-8mxr, MINI-hmwg-7fjj-7wqx, MINI-hmxx-rhv5-hx44, MINI-hp5f-37x3-f9q4, MINI-hp84-q6ch-w4hm, MINI-hpwq-gwfx-3w5q, MINI-hq2g-pc57-55c6, MINI-hqr5-x8gc-rvf7, MINI-hrhc-rrhq-vm54, MINI-hwr3-jf72-2cvm, MINI-hxff-486j-g55w, MINI-j228-c95r-xqrw, MINI-j23v-qfp2-h79g, MINI-j26r-626h-cpqx, MINI-j38p-gfv4-j8j6, MINI-j3cp-wjq6-qpgv, MINI-j3gf-q3wm-2jf7, MINI-j457-7p6x-r7w6, MINI-j5jf-8f72-w9cp, MINI-j5pr-8wxm-gqg2, MINI-j85j-4fvc-6qvq, MINI-j9gg-cxwq-fmp5, MINI-jc53-2r7w-v49v, MINI-jc7m-9gr2-7867, MINI-jh8j-fq5f-hmf4, MINI-jhvq-6xv2-m524, MINI-jjhh-2jwc-jrgh, MINI-jjrf-x4wr-2729, MINI-jmmh-5w9v-jpg8, MINI-jp4w-5r89-x7vw, MINI-jq9j-v4rm-hp24, MINI-jqjc-535g-xp47, MINI-jv5m-jr3h-5gvg, MINI-jw6j-9h3g-4q6x, MINI-jx7j-gvc6-hf44, MINI-jx8w-cc4m-6v9q, MINI-jx9j-v849-g37w, MINI-jxfh-m938-c97r, MINI-jxxp-g435-rp86, MINI-m269-v3jw-49gf, MINI-m3p8-24j4-858m, MINI-m4cc-54gg-v547, MINI-m4mm-2mq8-7692, MINI-m4rj-mj4g-jggq, MINI-m53q-mp2x-jwhr, MINI-m5c8-v9jm-mpm8, MINI-m5pw-3gf7-3g97, MINI-m5qq-g33p-hvgr, MINI-m5r2-2qjq-xq53, MINI-m5w4-cc6g-p8vc, MINI-m67x-7jfh-5fpm, MINI-m6x7-95w9-cf9g, MINI-m77h-3pwf-grx4, MINI-m7c6-fqwc-2wmg, MINI-m7qh-v526-fw94, MINI-m8hv-rr7p-xv57, MINI-m939-x89p-35mc, MINI-m9hx-wrcj-wgg7, MINI-m9v4-qxx6-rfw6, MINI-mc7v-3856-99jp, MINI-mcgw-9fc9-95pg, MINI-mcjc-3rfh-7grh, MINI-mcqx-p9j5-p738, MINI-mfhv-qjfj-q5pm, MINI-mfv5-xhgw-87xh, MINI-mg9p-3r8m-42v4, MINI-mghf-r6xc-48ww, MINI-mgqf-fvcp-ppwq, MINI-mgxc-hgq6-84vg, MINI-mhhg-vv7x-mwqr, MINI-mjff-7cwh-j36j, MINI-mmp6-x38m-f8rw, MINI-mp23-8mwg-w5cm, MINI-mp6v-6q4f-p5gj, MINI-mpjw-xfvm-9hfh, MINI-mqhc-wh66-f5x4, MINI-mqhw-j2p6-vxqg, MINI-mr56-mffr-692m, MINI-mr6x-7g52-ffv5, MINI-mrmj-2f73-pxqh, MINI-mvch-xw96-v758, MINI-mvm6-f36h-m32x, MINI-mvpp-vrhp-2ccw, MINI-mvwq-f4wp-745q, MINI-mwwp-7q67-8wxv, MINI-mx4g-2v2h-w57j, MINI-mx6f-cxp3-9g9m, MINI-p235-c359-4958, MINI-p2jp-9jh2-wq47, MINI-p3j5-gxpf-4636, MINI-p432-h49p-j452, MINI-p5c8-pjfq-6wv7, MINI-p62h-5j6w-h4rq, MINI-p635-gwx3-vqwj, MINI-p6cq-66j8-r7v5, MINI-p6qf-g2jw-pr4h, MINI-p7gx-rvcx-vmfw, MINI-p826-8vjq-qgqp, MINI-p8vf-vmr3-hc93, MINI-p9pj-r3qc-4368, MINI-pcxc-mfgj-482r, MINI-pfpg-8r7w-c6vf, MINI-pfpv-3397-2p72, MINI-pgmg-v4v7-xfxp, MINI-ph5j-7h9g-7h8h, MINI-phpf-rwx8-m36j, MINI-phqj-g3pj-33rg, MINI-phxc-35p2-f5p9, MINI-pj54-3grv-8gmv, MINI-pj7f-pjqg-7r5p, MINI-pjqr-2qmw-r45m, MINI-pmvh-2872-38qm, MINI-pp8q-3j73-q68m, MINI-ppfx-hxgp-7xc2, MINI-pphf-c78v-p7jr, MINI-pprp-547v-237w, MINI-pqff-6mm5-9v63, MINI-pr5p-r3xq-p6fx, MINI-pv4w-w5xr-4rqm, MINI-pvhf-45jj-x34q, MINI-pwcw-v9qw-h54g, MINI-px2r-vj2p-hxmw, MINI-q293-4jrf-9h47, MINI-q2pr-9cm6-vv7c, MINI-q2w6-vrx4-m5v9, MINI-q34g-hwvc-jc7w, MINI-q3rq-qh6p-pw4h, MINI-q3xc-82xm-jgw4, MINI-q47p-2pqg-q8c7, MINI-q4cr-973j-4wcc, MINI-q4hj-95f2-f9mh, MINI-q4q8-h298-h7rh, MINI-q52p-v5j4-f7pq, MINI-q57q-4mpx-qjcr, MINI-q5mp-89xm-897c, MINI-q67p-jgf8-rr3v, MINI-q687-28f4-vv3j, MINI-q6r5-fh4p-6mfv, MINI-q6xq-4hv8-m9h9, MINI-q7h7-xhv5-9c7g, MINI-q7m4-j99r-whf4, MINI-q7rc-x3gp-67jq, MINI-q8hc-56v5-qhjm, MINI-q97j-w383-8xjp, MINI-q983-45j5-ph8q, MINI-qc4w-j557-87mg, MINI-qc87-25gg-mr54, MINI-qgmf-f57m-cgfj, MINI-qgwx-cc8p-33w6, MINI-qh76-7fm4-xj4p, MINI-qhfr-8fvw-4rv5, MINI-qhvq-4jcq-cf7w, MINI-qmgw-p2p6-gp2f, MINI-qp4p-q8w5-cvgw, MINI-qp6g-wwjq-rr3q, MINI-qppc-836w-m3w9, MINI-qrjf-9p5f-vv65, MINI-qrxv-hv53-q9jm, MINI-qvxg-6rff-qppv, MINI-qw95-46hg-xc8m, MINI-qwgc-j7rw-j3cv, MINI-qxh6-rvvq-cqqq, MINI-r2v3-wpx9-mq99, MINI-r3c7-4c8m-w7gc, MINI-r3cp-8xjc-j8x4, MINI-r3ww-6g4m-p4q4, MINI-r44c-ch3h-c3xx, MINI-r466-v64q-49rg, MINI-r4qq-rxr4-j8xj, MINI-r522-mhvj-wjxg, MINI-r5r3-fgf5-fppx, MINI-r695-x2v5-9h8m, MINI-r6x3-6r6r-f2fj, MINI-r829-vqg2-g56j, MINI-r82m-9wfw-p6pf, MINI-r863-8hj8-3r9f, MINI-r8gx-48m5-vf3r, MINI-r8jw-9gqm-9x8m, MINI-r934-c39j-rrgx, MINI-rc22-ch2q-gg8c, MINI-rcw9-5w2r-vr8m, MINI-rf35-fxwc-9gr9, MINI-rfp9-gvwp-fm6q, MINI-rgfv-hgg7-63xm, MINI-rgxx-h8q5-r3v5, MINI-rh64-7699-rqqv, MINI-rhhj-5c58-pm85, MINI-rjcf-43h8-5vrf, MINI-rjv5-r8ph-8wch, MINI-rmw5-7vpc-3g6q, MINI-rp7f-mrv4-65m6, MINI-rpc5-36g9-c4fh, MINI-rq34-cmg5-22h6, MINI-rq7m-29x9-w9wm, MINI-rq9x-8rrg-vj98, MINI-rqpf-qw4f-f584, MINI-rr5q-52w8-36gr, MINI-rr9h-924p-hw7m, MINI-rrq8-mf2p-j3w2, MINI-rrwq-gqr8-h2mr, MINI-rvmc-prhw-4h6g, MINI-rwjm-h4gh-xgq3, MINI-rxw7-929c-hvqg, MINI-v2w8-jq96-g8rf, MINI-v323-rq6h-qgqx, MINI-v36p-hp22-4w3h, MINI-v399-5hh8-7f7w, MINI-v3m5-3c3q-8cqj, MINI-v3q2-x4vc-6vr2, MINI-v47c-748j-9rg7, MINI-v4j2-3j4p-rg22, MINI-v5j3-xqqw-5qmc, MINI-v5v4-fxxh-3v4f, MINI-v5wx-543v-g7vv, MINI-v64w-mxqv-xr2f, MINI-v68q-j5m5-rr67, MINI-v76v-2whw-6vfw, MINI-v7cv-gvwg-p2rx, MINI-v7hj-4whm-7w5p, MINI-v879-qqfc-gx6r, MINI-v8hw-cvmr-4cfr, MINI-v9pm-prw9-cgjm, MINI-vc8g-5547-x6qx, MINI-vcg2-3hp9-7q2j, MINI-vcp8-h2m5-cx39, MINI-vg4w-h2cc-3mq6, MINI-vg6m-chhh-9x6w, MINI-vhg6-xw9q-qr69, MINI-vhhq-mmhg-cxh7, MINI-vhx4-fcpg-vhmg, MINI-vjpj-3969-9qwq, MINI-vjrh-352f-pj97, MINI-vmx7-mrvr-fxxx, MINI-vrpc-x2qv-h963, MINI-vv33-8qw3-4qwc, MINI-vv38-g5qp-j4hc, MINI-vvj6-666h-4795, MINI-vwfp-52p2-4qph, MINI-vx9c-54ww-f8gv, MINI-w22x-gfcg-v4cv, MINI-w2v9-j9h7-p7wm, MINI-w589-4wgc-cv6p, MINI-w5q2-qx9w-wcfv, MINI-w5x8-85gg-mhc3, MINI-w629-q9qw-7jmj, MINI-w8g4-2r6p-qwhm, MINI-w9f4-w36q-8xh9, MINI-wcc9-9c3g-xcfg, MINI-wcg3-pxpm-grp9, MINI-wcgh-fqc2-p6xr, MINI-wcqw-cvmf-969h, MINI-wf93-5vhv-hc7g, MINI-wfvx-766c-v78q, MINI-wg8x-g997-ghc8, MINI-wgc8-v5q3-843v, MINI-wgh4-553m-mmcq, MINI-wh26-mxcp-78j5, MINI-wh2g-3fmx-mhx7, MINI-whxj-8q94-m4cw, MINI-wm54-gh2v-rqw5, MINI-wpcv-3v8j-qmwv, MINI-wq5w-86mr-336h, MINI-wr3w-6vxj-r97q, MINI-wrjg-xvf2-xp4w, MINI-wrwg-gmp7-xmc9, MINI-ww5m-62c2-rg69, MINI-ww76-9fr9-h793, MINI-wwj5-623r-p29x, MINI-wwjf-xqhq-38fh, MINI-wx4x-xxqf-xpxc, MINI-wxjw-98h2-2xjr, MINI-wxp5-hvpp-r4rw, MINI-x2wf-w58q-v2qh, MINI-x326-cx92-qfrf, MINI-x3xh-fh7j-h634, MINI-x4xh-2m9p-69rh, MINI-x5x6-8hgw-w9m3, MINI-x62j-w9v8-rg8q, MINI-x684-j3mg-qc73, MINI-x6j3-46fv-hf84, MINI-x7qj-q6gj-pvr3, MINI-x8c7-2vcp-xw9w, MINI-x8cf-qvqh-56r9, MINI-x8fc-7j35-638p, MINI-x8j8-6hg3-j34q, MINI-x8q8-59hj-gfwx, MINI-x8xx-pqj4-g9xq, MINI-x96h-7qh3-75xg, MINI-x9cf-r59f-8rvp, MINI-x9f4-89qj-rrqf, MINI-x9xc-gwq3-65q3, MINI-xfjc-vhgh-qvp2, MINI-xgc7-xw6h-jw8g, MINI-xh22-p4p2-h9x9, MINI-xhph-jwf2-76pf, MINI-xj98-c2hj-r29r, MINI-xjmj-7pgv-hpw8, MINI-xm4m-hgcf-c3vx, MINI-xmpm-c6h6-w3fh, MINI-xmq6-q9mg-mh96, MINI-xpv9-527c-9xg2, MINI-xpx9-6gf8-5x25, MINI-xqhg-cp82-fgh2, MINI-xqr6-7f7v-8q5f, MINI-xrpm-h8ch-qxrg, MINI-xv8c-8g5m-2jpx, MINI-xvxq-mw2g-qf2j, MINI-xw22-wpj5-2f63, MINI-xwm7-xj96-r22p, MINI-xwmf-gf3q-rqgm, MINI-xx2c-c7w2-gpvp, MINI-xx6r-fxqp-4fqh, UBUNTU-CVE-2026-81870

## What is CVE-2026-81870?

CVE-2026-81870 is a low-severity vulnerability in open-telemetry opentelemetry-go, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 1.5.0 to 1.44.0, sdk/trace.NewTracerProvider emits a TracerProvider created internal Info-level diagnostic event whose MarshalLog implementations recursively include span processor, exporter, and client configuration. Applications that call otel.SetLogger to enable OpenTelemetry internal Info logging can therefore record OTLP gRPC and HTTP collector endpoints, the OTLP HTTP Insecure flag, and complete Zipkin collector URLs. A person or system with access to those logs can learn internal collector topology and can recover credentials or tokens embedded in Zipkin URL user information or query strings. The default OpenTelemetry logger does not emit the event, and this path does not log OTLP authentication headers, TLS key material, or span payloads. This issue is fixed in version 1.45.0.

Weakness: CWE-532 (Insertion of Sensitive Information into Log File), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-81870?

15 open source packages ship an affected version, including go.opentelemetry.io/otel/exporters/otlp/otlptrace, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc and go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/zipkin` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/zipkin` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/exporters/zipkin` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/sdk` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/sdk` | Go | From 1.5.0 | 1.45.0 |
| `go.opentelemetry.io/otel/sdk` | Go | From 1.5.0 | 1.45.0 |

## How do I fix CVE-2026-81870?

Upgrade go.opentelemetry.io/otel/exporters/otlp/otlptrace to 1.45.0 or later.

## Is CVE-2026-81870 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81870 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81870 and fix it if it is affected.

What it is: CVE-2026-81870 is a low-severity vulnerability in open-telemetry opentelemetry-go, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81870 exists.

Affected packages and fixed versions:
- go.opentelemetry.io/otel/exporters/otlp/otlptrace (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/zipkin (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/zipkin (Go): affected from 1.5.0; fixed in 1.45.0
- go.opentelemetry.io/otel/exporters/zipkin (Go): affected from 1.5.0; fixed in 1.45.0

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-2026-81870/ (Markdown: https://insights.sbomify.com/CVE-2026-81870/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81870
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81870
- OSV: https://osv.dev/vulnerability/CVE-2026-81870

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-81870/
Summaries are generated and may contain mistakes; the official description above is the record.
