{"answers":{"affected":"3 open source packages ship an affected version, including go.opentelemetry.io/otel. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29181 exists.","fix":"Upgrade go.opentelemetry.io/otel to 1.41.0 or later.","what":"CVE-2026-29181 is a high-severity denial of service vulnerability in open-telemetry opentelemetry-go, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-29181 and fix it if it is affected.\n\nWhat it is: CVE-2026-29181 is a high-severity denial of service vulnerability in open-telemetry opentelemetry-go, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29181 exists.\n\nAffected packages and fixed versions:\n- go.opentelemetry.io/otel (Go): affected from 1.36.0; fixed in 1.41.0\n- go.opentelemetry.io/otel (Go): affected from 1.36.0; fixed in 1.41.0\n- go.opentelemetry.io/otel (Go): affected from 1.36.0; fixed in 1.41.0\n\nTask:\n1. 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.\n2. 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.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-29181/ (Markdown: https://insights.sbomify.com/CVE-2026-29181/index.md)","id":"CVE-2026-29181","markdown":"https://insights.sbomify.com/CVE-2026-29181/index.md","name":"CVE-2026-29181","record":{"aliases":["AZL-82085","AZL-82088","AZL-82094","AZL-82109","AZL-82115","AZL-82211","AZL-84801","CLEANSTART-2026-KN30068","CLEANSTART-2026-LN79674","CLEANSTART-2026-MI18289","CLEANSTART-2026-MS30353","CLEANSTART-2026-OV15001","CLEANSTART-2026-OX52172","CLEANSTART-2026-SJ52043","CLEANSTART-2026-UD17568","GHSA-mh2q-q3fh-2475","GO-2026-5506","MINI-22fp-r66q-hfww","MINI-22h5-6f6p-96qw","MINI-23mh-gcgq-54q6","MINI-25p5-9fxv-6jqc","MINI-264m-j5jw-pxv4","MINI-272m-p7wj-r78w","MINI-284g-gjvm-hhph","MINI-2853-qxp4-fgqv","MINI-296r-8ghh-6m2r","MINI-29v8-4qgq-4xgc","MINI-2c4m-4gpc-v83h","MINI-2f2q-wc55-fmh6","MINI-2fjr-r489-xcwh","MINI-2h62-pf69-52f5","MINI-2hgr-h39f-fqf4","MINI-2jrq-3gq2-w46j","MINI-2m49-wm3h-cj6h","MINI-2mfx-2c3j-7hfg","MINI-2pc9-4g53-5922","MINI-2pg6-cqw5-6cqj","MINI-2rhh-27h9-p3r2","MINI-2vcj-qhx2-vgh5","MINI-2w43-873q-p3r7","MINI-2w63-3mjh-rrmp","MINI-2w8p-4m89-3x95","MINI-2x4f-94wx-q8c8","MINI-2xf7-7xxw-j48c","MINI-32pr-pf4f-3p66","MINI-3529-9xqv-3rvv","MINI-356w-fvv6-4c66","MINI-37gr-fjp3-q87j","MINI-37hf-6qp9-3wcf","MINI-37mp-cf2q-5p7f","MINI-3845-jq77-rf3h","MINI-386h-w82g-56wg","MINI-38cw-4876-82v8","MINI-38v4-h7jp-wc97","MINI-3984-hjqp-3x26","MINI-39qp-64m8-qjfh","MINI-3c8w-2r4v-4qqh","MINI-3cvj-49j3-7pr3","MINI-3f76-34p3-rf4v","MINI-3fj3-q4pp-q5qg","MINI-3gvh-3x54-xwwh","MINI-3h7v-wwhc-294r","MINI-3jhg-mf55-53xr","MINI-3jp2-5g7m-8mfm","MINI-3m7m-3qx4-p23v","MINI-3mg4-px8j-qwxj","MINI-3p7c-mf2w-4x8h","MINI-3pcx-ccch-32cc","MINI-3r34-mc23-c2h4","MINI-3v4f-9j5v-qm45","MINI-3v89-vf63-9mf7","MINI-3vpv-rqh7-66xc","MINI-3wmp-77jv-hm68","MINI-3x84-85xc-pjcv","MINI-3xjh-75h6-h2xx","MINI-3xjw-wr83-9866","MINI-3xx6-h84g-95w3","MINI-42gj-fp3h-r9f8","MINI-43gv-pw9j-3q9v","MINI-448c-7p27-j57p","MINI-44gr-2p5w-hgpg","MINI-45fg-cg5c-2p65","MINI-49v2-p43f-9prw","MINI-4f25-jgwp-6vqg","MINI-4f4r-mqmq-74qw","MINI-4f82-gf58-87pp","MINI-4fhm-2887-c2gv","MINI-4fjr-7vjm-gccq","MINI-4g74-2qwm-c5g2","MINI-4hp7-wwh8-6c3w","MINI-4j23-mxg5-vrm5","MINI-4p39-jwf6-5534","MINI-4p44-5pmx-fc55","MINI-4q6x-x7q3-q8ph","MINI-4r22-4xcp-268j","MINI-4rmm-f5xp-69jh","MINI-4rr9-5ff9-v664","MINI-4v89-8f9r-5v8r","MINI-4wfj-cwx3-5xvp","MINI-4wfj-fc3j-xqfr","MINI-52c3-49q2-j7hr","MINI-533w-3r3w-854v","MINI-53hv-x99f-mh95","MINI-54f8-6hv9-93gc","MINI-56jr-5qv9-x4gf","MINI-56q2-2gq3-wchr","MINI-56q6-324r-75q3","MINI-5758-6vmq-hhff","MINI-577c-w6pf-m936","MINI-588w-hwxr-hpmv","MINI-59pv-4rg2-2x5w","MINI-59r9-v2x9-794g","MINI-59vj-966g-x7v2","MINI-5fjj-xxg7-85h8","MINI-5fm2-wf73-vgv2","MINI-5fxf-4gh4-cg77","MINI-5g6r-22vx-rrp9","MINI-5g87-44x9-rxf4","MINI-5gcg-c3j3-5c4v","MINI-5h4r-rwc5-52p2","MINI-5h6v-vfqh-fgr7","MINI-5j7h-hmjp-wpwv","MINI-5jrq-cx8g-3x67","MINI-5mr9-gjq7-7jgw","MINI-5pj9-v8rx-2wmh","MINI-5qcm-9c6x-5j8v","MINI-5qx7-7h32-68xx","MINI-5rg4-249x-wpxx","MINI-5rwq-7vqc-379m","MINI-5xqg-fh72-2j6m","MINI-62p6-3922-946m","MINI-63q7-h5cf-7hmx","MINI-6557-639m-4xj5","MINI-66p4-86qh-5gqg","MINI-66w4-5423-mmg3","MINI-66wc-8r2g-cv86","MINI-678x-2jr6-pv29","MINI-685h-89j4-3cgh","MINI-68g5-crr8-j3m4","MINI-68mw-xcj5-569q","MINI-69c5-wh4c-3373","MINI-6c9h-8f29-f2r2","MINI-6cfw-qxwp-rp44","MINI-6fxm-hg66-7q32","MINI-6g42-5jwq-6wf2","MINI-6jpp-62wv-v9jh","MINI-6jrq-gf3p-q452","MINI-6m9f-4qgq-447m","MINI-6mjq-wgfq-rgcw","MINI-6mqr-q5xx-5jh5","MINI-6phf-pmjp-8h3h","MINI-6pwp-35rr-fm5g","MINI-6q9c-758h-6qmr","MINI-6qjv-w4x5-p86f","MINI-6qmg-g576-mm8p","MINI-6rpx-3rp5-xwv8","MINI-6rx5-fh8g-976c","MINI-6vcg-x9g2-vp6p","MINI-6wh2-6x7h-6hwv","MINI-6wp7-j7c8-r2rw","MINI-6wqh-746r-878g","MINI-6xw9-r5pg-94mx","MINI-726p-vfqp-4g53","MINI-7389-55g4-cq7x","MINI-739h-wvmv-5g79","MINI-73hf-fwg2-chc7","MINI-7576-phxj-hh87","MINI-765h-2mj6-55v6","MINI-7786-3jg6-8745","MINI-77gw-r2f2-rfj3","MINI-77mw-jjx4-xp5p","MINI-788m-mrfm-q7f9","MINI-78jv-jpff-wxcf","MINI-7cvg-wcj6-8h3r","MINI-7g9x-vpj8-58mc","MINI-7h37-r7r4-gmwq","MINI-7j4w-68vc-fgj4","MINI-7jmw-fmmj-x688","MINI-7m78-rw4x-3vhx","MINI-7m7f-4fcr-p6j9","MINI-7pg2-mg8h-28f3","MINI-7pxq-q8cf-xcqm","MINI-7r84-6hwc-hrf2","MINI-7r9v-4h2c-wrpx","MINI-7rf7-rw6w-c25m","MINI-7rrv-h2m2-2fj8","MINI-7vv7-rr2p-44qr","MINI-7w23-3h7j-q56w","MINI-7w2f-pgg6-fmgf","MINI-7w3c-f9xg-pm66","MINI-7x3p-qm32-f45v","MINI-7x4p-84jg-p9fx","MINI-7x7r-h96q-hvh6","MINI-824f-h6j6-3xcc","MINI-826j-87rm-qc26","MINI-8346-p3fm-5g36","MINI-8567-xgh2-3qmw","MINI-864w-h8jg-797r","MINI-8664-hrvg-x396","MINI-86g6-hfpj-xmhr","MINI-87vm-4fxf-gpcf","MINI-8c25-57g7-pc9r","MINI-8m62-9m53-pf3w","MINI-8mxr-79h2-95xf","MINI-8p46-jqm4-pr7x","MINI-8q4v-mhxh-8gjh","MINI-8qwr-26xm-93gf","MINI-8r8f-9w2q-4m2j","MINI-8vch-qfx6-p559","MINI-8vw8-h257-qmmh","MINI-8wpr-9rj6-24cp","MINI-92m3-f6cj-xjwg","MINI-92v8-hf6h-8f9j","MINI-936p-qp46-g3w9","MINI-93c3-c82w-8f3c","MINI-93fc-f958-h8wc","MINI-93p3-q857-764r","MINI-93wm-9w9r-2rw7","MINI-9452-jv4g-c4f4","MINI-94gj-jmpp-h384","MINI-94rj-88w6-8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observability library","requires_auth":"none","summary":"Attackers can cause excessive CPU and memory allocations in OpenTelemetry-Go by sending multiple baggage headers, leading to denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"opentelemetry","vendor":"opentelemetry"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit. This vulnerability is fixed in 1.41.0.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)","id":"CVE-2026-29181","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction","id":"CVE-2026-29182"},"packages":[{"ecosystem":"Go","fixed":["1.41.0"],"introduced":["1.36.0"],"last_affected":[],"package":"go.opentelemetry.io/otel","purl":null,"source":"GHSA-mh2q-q3fh-2475"},{"ecosystem":"Go","fixed":["1.41.0"],"introduced":["1.36.0"],"last_affected":[],"package":"go.opentelemetry.io/otel","purl":"pkg:golang/go.opentelemetry.io/otel","source":"GHSA-mh2q-q3fh-2475"},{"ecosystem":"Go","fixed":["1.41.0"],"introduced":["1.36.0"],"last_affected":[],"package":"go.opentelemetry.io/otel","purl":"pkg:golang/go.opentelemetry.io/otel","source":"GO-2026-5506"}],"prev":{"headline":"Fleet's team maintainer can transfer hosts from any team via missing source team authorization","id":"CVE-2026-29180"},"products":["opentelemetry-go"],"published":"2026-04-07","related":[{"cvss_score":7.5,"headline":"DoS vulnerability in otelgrpc (uncontrolled resource consumption) due to unbound cardinality metrics","id":"CVE-2023-47108","kev_date_added":null,"published":"2023-11-10"},{"cvss_score":7.5,"headline":"OpenTelemetry-Go Contrib has DoS vulnerability in otelhttp due to unbound cardinality metrics","id":"CVE-2023-45142","kev_date_added":null,"published":"2023-10-12"},{"cvss_score":7.5,"headline":"opentelemetry-instrumentation Denial of Service vulnerability due to unbound cardinality metrics","id":"CVE-2023-43810","kev_date_added":null,"published":"2023-10-06"},{"cvss_score":7.3,"headline":"opentelemetry-go: BSD kenv command not using absolute path enables PATH hijacking","id":"CVE-2026-39883","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":7,"headline":"OpenTelemetry-Go Affected by Arbitrary Code Execution via PATH Hijacking","id":"CVE-2026-24051","kev_date_added":null,"published":"2026-02-02"},{"cvss_score":5.9,"headline":"OpenTelemetry dotnet: Potential memory exhaustion via unbounded pooled-list sizing in Jaeger exporter conversion path","id":"CVE-2026-41078","kev_date_added":null,"published":"2026-04-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-17","vendors":["open-telemetry"]},"summary":"Attackers can cause excessive CPU and memory allocations in OpenTelemetry-Go by sending multiple baggage headers, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-29181/"}