{"id":"GHSA-mh2q-q3fh-2475","revision":null,"records":[{"revision":"a52170bfbdd046ce806dec2ec026e42d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-29181","aliases":[],"title":"OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)","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.","state":0,"publishedAt":"2026-04-07T20:29:13.933+00:00","modifiedAt":"2026-09-17T12:04:31.51+00:00","affected":[{"ecosystem":"Vendor product","name":"opentelemetry-go","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"open-telemetry\",\n                    \"product\": \"opentelemetry-go\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.36.0, < 1.41.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-29181","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-29181","identifiers":["CVE-2026-29181"]},"retained":false,"historicalAffected":[]},{"revision":"0e5573124c1c4d83a9908a0343438a3c","observedAt":"2026-11-11T07:35:30.142+00:00","statement":{"source":"euvd","id":"EUVD-2026-19938","aliases":["CVE-2026-29181","GHSA-mh2q-q3fh-2475"],"title":"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 …","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"references":["https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-19938","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 7, 2026, 8:29:13 PM","dateUpdated":"Sep 17, 2026, 12:04:31 PM"},"relatedAdvisories":[{"id":"msrc_CVE-2026-29181","title":"OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)","vulnerabilityIds":["CVE-2026-29181"]},{"id":"openSUSE-SU-2026:11173-1","title":"etcd-3.6.13-1.1 on GA media","vulnerabilityIds":["CVE-2026-29181","CVE-2026-39883"]},{"id":"RHSA-2026:63140","title":"Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.19.2","vulnerabilityIds":["CVE-2026-1965","CVE-2026-3783","CVE-2026-8286","CVE-2026-9547","CVE-2026-11822","CVE-2026-11824","CVE-2026-15588","CVE-2026-29181","CVE-2026-39883","CVE-2026-58010","CVE-2026-58011","CVE-2026-58012","CVE-2026-58013","CVE-2026-58014","CVE-2026-58015","CVE-2026-58055"]},{"id":"RHSA-2026:70870","title":"Red Hat Security Advisory: Logging for Red Hat OpenShift - 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Advisory: multicluster engine for Kubernetes v2.8.9 security update","vulnerabilityIds":["CVE-2026-16242","CVE-2026-17107","CVE-2026-25681","CVE-2026-27136","CVE-2026-27145","CVE-2026-29181","CVE-2026-33811","CVE-2026-39821","CVE-2026-39828","CVE-2026-39829","CVE-2026-39830","CVE-2026-39835","CVE-2026-42508","CVE-2026-44740","CVE-2026-44990","CVE-2026-45447","CVE-2026-59869"]},{"id":"RHSA-2026:83013","title":"Red Hat Security Advisory: Logging for Red Hat OpenShift - 6.0.17","vulnerabilityIds":["CVE-2026-18140","CVE-2026-25681","CVE-2026-27136","CVE-2026-29181","CVE-2026-32283","CVE-2026-32285","CVE-2026-33186","CVE-2026-33818","CVE-2026-35469","CVE-2026-41178","CVE-2026-42151","CVE-2026-42154","CVE-2026-42499","CVE-2026-42502","CVE-2026-46600","CVE-2026-56852","CVE-2026-56853","CVE-2026-56858","CVE-2026-56859","CVE-2026-56860","CVE-2026-56862","CVE-2026-63209","CVE-2026-84445"]},{"id":"RHSA-2026:72395","title":"Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.20.1","vulnerabilityIds":["CVE-2025-6170","CVE-2026-1965","CVE-2026-3783","CVE-2026-5435","CVE-2026-5928","CVE-2026-6238","CVE-2026-6653","CVE-2026-8286","CVE-2026-8458","CVE-2026-8927","CVE-2026-9547","CVE-2026-11822","CVE-2026-11824","CVE-2026-11979","CVE-2026-13757","CVE-2026-14164","CVE-2026-14456","CVE-2026-14457","CVE-2026-15588","CVE-2026-16118","CVE-2026-18798","CVE-2026-29181","CVE-2026-33186","CVE-2026-39883","CVE-2026-41989","CVE-2026-46600","CVE-2026-48864","CVE-2026-54369","CVE-2026-54370","CVE-2026-54371","CVE-2026-54874","CVE-2026-56392","CVE-2026-56852","CVE-2026-56854","CVE-2026-58010","CVE-2026-58011","CVE-2026-58012","CVE-2026-58013","CVE-2026-58014","CVE-2026-58015","CVE-2026-58016","CVE-2026-58055","CVE-2026-63072","CVE-2026-63073","CVE-2026-63074","CVE-2026-63075","CVE-2026-63076","CVE-2026-63379","CVE-2026-63381","CVE-2026-63382","CVE-2026-63383","CVE-2026-63384","CVE-2026-63385","CVE-2026-63387","CVE-2026-63388","CVE-2026-81870","CVE-2026-84445"]},{"id":"WID-SEC-W-2026-3046","title":"IBM Concert: Mehrere Schwachstellen","vulnerabilityIds":["CVE-2019-19921","CVE-2021-23337","CVE-2024-3651","CVE-2024-39338","CVE-2024-45590","CVE-2025-13465","CVE-2025-15284","CVE-2025-15599","CVE-2025-22874","CVE-2025-47273","CVE-2025-47907","CVE-2025-52881","CVE-2025-53643","CVE-2025-55184","CVE-2025-58056","CVE-2025-58188","CVE-2025-58189","CVE-2025-61723","CVE-2025-61730","CVE-2025-64649","CVE-2025-64756","CVE-2025-67221","CVE-2025-68121","CVE-2025-68146","CVE-2026-0540","CVE-2026-2327","CVE-2026-23490","CVE-2026-23897","CVE-2026-2391","CVE-2026-23949","CVE-2026-24486","CVE-2026-25528","CVE-2026-25547","CVE-2026-25639","CVE-2026-25990","CVE-2026-26007","CVE-2026-26019","CVE-2026-26996","CVE-2026-27142","CVE-2026-27212","CVE-2026-27699","CVE-2026-27903","CVE-2026-27904","CVE-2026-28684","CVE-2026-29063","CVE-2026-29181","CVE-2026-2950","CVE-2026-31808","CVE-2026-31900","CVE-2026-32274","CVE-2026-32288","CVE-2026-32597","CVE-2026-32630","CVE-2026-32887","CVE-2026-32952","CVE-2026-33186","CVE-2026-33532","CVE-2026-33750","CVE-2026-33814","CVE-2026-33816","CVE-2026-33916","CVE-2026-34043","CVE-2026-34073","CVE-2026-34077","CVE-2026-3520","CVE-2026-35469","CVE-2026-35515","CVE-2026-3627","CVE-2026-39823","CVE-2026-39825","CVE-2026-39826","CVE-2026-39892","CVE-2026-39984","CVE-2026-40175","CVE-2026-40179","CVE-2026-40181","CVE-2026-40190","CVE-2026-40347","CVE-2026-41066","CVE-2026-41182","CVE-2026-41238","CVE-2026-41239","CVE-2026-41240","CVE-2026-41305","CVE-2026-41324","CVE-2026-41425","CVE-2026-41481","CVE-2026-41488","CVE-2026-41602","CVE-2026-41636","CVE-2026-42151","CVE-2026-42154","CVE-2026-42198","CVE-2026-42211","CVE-2026-42338","CVE-2026-42342","CVE-2026-42561","CVE-2026-42577","CVE-2026-43870","CVE-2026-44405","CVE-2026-44431","CVE-2026-44432","CVE-2026-44486","CVE-2026-44487","CVE-2026-44488","CVE-2026-44492","CVE-2026-44494","CVE-2026-44496","CVE-2026-44728","CVE-2026-4539","CVE-2026-45409","CVE-2026-45736","CVE-2026-46625","CVE-2026-4800","CVE-2026-4923","CVE-2026-4926","CVE-2026-7246","CVE-2026-8723"]},{"id":"RHSA-2026:25271","title":"Red Hat Security Advisory: multicluster engine for Kubernetes v2.11.0 General Availability","vulnerabilityIds":["CVE-2026-6322","CVE-2026-29181","CVE-2026-40895","CVE-2026-42033","CVE-2026-42035","CVE-2026-42039","CVE-2026-42041","CVE-2026-42043","CVE-2026-42044"]},{"id":"RHSA-2026:72475","title":"Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.20.1","vulnerabilityIds":["CVE-2025-6170","CVE-2026-1965","CVE-2026-3783","CVE-2026-5435","CVE-2026-5928","CVE-2026-6238","CVE-2026-6653","CVE-2026-8286","CVE-2026-8458","CVE-2026-8927","CVE-2026-9547","CVE-2026-11822","CVE-2026-11824","CVE-2026-11979","CVE-2026-13757","CVE-2026-14164","CVE-2026-14456","CVE-2026-14457","CVE-2026-15588","CVE-2026-16118","CVE-2026-18798","CVE-2026-29181","CVE-2026-33186","CVE-2026-39883","CVE-2026-41989","CVE-2026-46600","CVE-2026-48864","CVE-2026-54369","CVE-2026-54370","CVE-2026-54371","CVE-2026-54874","CVE-2026-56392","CVE-2026-56852","CVE-2026-56854","CVE-2026-58010","CVE-2026-58011","CVE-2026-58012","CVE-2026-58013","CVE-2026-58014","CVE-2026-58015","CVE-2026-58016","CVE-2026-58055","CVE-2026-63072","CVE-2026-63073","CVE-2026-63074","CVE-2026-63075","CVE-2026-63076","CVE-2026-63379","CVE-2026-63381","CVE-2026-63382","CVE-2026-63383","CVE-2026-63384","CVE-2026-63385","CVE-2026-63387","CVE-2026-63388","CVE-2026-74860","CVE-2026-81870","CVE-2026-84445","CVE-2026-86138","CVE-2026-86140","CVE-2026-86142","CVE-2026-86143","CVE-2026-86144"]},{"id":"RHSA-2026:61314","title":"Red Hat Security Advisory: Cluster Observability Operator 1.5.2","vulnerabilityIds":["CVE-2026-13676","CVE-2026-27145","CVE-2026-29181","CVE-2026-32281","CVE-2026-32285","CVE-2026-35469","CVE-2026-39829","CVE-2026-39830","CVE-2026-39831","CVE-2026-39832","CVE-2026-41178","CVE-2026-42508","CVE-2026-44740","CVE-2026-46595","CVE-2026-46597","CVE-2026-46600","CVE-2026-55677","CVE-2026-56852","CVE-2026-73643"]},{"id":"RHSA-2026:68349","title":"Red Hat Security Advisory: Logging for Red Hat OpenShift - 6.2.13","vulnerabilityIds":["CVE-2026-15792","CVE-2026-18140","CVE-2026-29181","CVE-2026-32283","CVE-2026-33818","CVE-2026-35469","CVE-2026-41178","CVE-2026-42502","CVE-2026-56852","CVE-2026-56853","CVE-2026-56858","CVE-2026-56859","CVE-2026-56860","CVE-2026-56862"]},{"id":"RHSA-2026:82322","title":"Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.2","vulnerabilityIds":["CVE-2024-34459","CVE-2025-5278","CVE-2025-6170","CVE-2025-13151","CVE-2025-14087","CVE-2025-14512","CVE-2025-47911","CVE-2025-47913","CVE-2025-47914","CVE-2025-58181","CVE-2025-58190","CVE-2026-1965","CVE-2026-2100","CVE-2026-2673","CVE-2026-3783","CVE-2026-3832","CVE-2026-3833","CVE-2026-4046","CVE-2026-4424","CVE-2026-4437","CVE-2026-4438","CVE-2026-4878","CVE-2026-5121","CVE-2026-5260","CVE-2026-5419","CVE-2026-5435","CVE-2026-5450","CVE-2026-5928","CVE-2026-6238","CVE-2026-6653","CVE-2026-7383","CVE-2026-8286","CVE-2026-9076","CVE-2026-9547","CVE-2026-11822","CVE-2026-11824","CVE-2026-11979","CVE-2026-13757","CVE-2026-14164","CVE-2026-15588","CVE-2026-16118","CVE-2026-25680","CVE-2026-25681","CVE-2026-27135","CVE-2026-27136","CVE-2026-28390","CVE-2026-29111","CVE-2026-29181","CVE-2026-31790","CVE-2026-33186","CVE-2026-33845","CVE-2026-33846","CVE-2026-34180","CVE-2026-34181","CVE-2026-34182","CVE-2026-34183","CVE-2026-39827","CVE-2026-39828","CVE-2026-39829","CVE-2026-39830","CVE-2026-39831","CVE-2026-39832","CVE-2026-39833","CVE-2026-39834","CVE-2026-39835","CVE-2026-40355","CVE-2026-40356","CVE-2026-41989","CVE-2026-42009","CVE-2026-42010","CVE-2026-42011","CVE-2026-42012","CVE-2026-42013","CVE-2026-42014","CVE-2026-42015","CVE-2026-42502","CVE-2026-42506","CVE-2026-42508","CVE-2026-42764","CVE-2026-42766","CVE-2026-42767","CVE-2026-42768","CVE-2026-42769","CVE-2026-42770","CVE-2026-45445","CVE-2026-45446","CVE-2026-45447","CVE-2026-46595","CVE-2026-46597","CVE-2026-46598","CVE-2026-46600","CVE-2026-48864","CVE-2026-54369","CVE-2026-54370","CVE-2026-54371","CVE-2026-56854","CVE-2026-56855","CVE-2026-58010","CVE-2026-58011","CVE-2026-58012","CVE-2026-58013","CVE-2026-58014","CVE-2026-58015","CVE-2026-58016","CVE-2026-58055","CVE-2026-78662","CVE-2026-84304","CVE-2026-84445"]},{"id":"RHSA-2026:82336","title":"Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.1","vulnerabilityIds":["CVE-2025-6170","CVE-2026-1965","CVE-2026-3783","CVE-2026-5435","CVE-2026-5928","CVE-2026-6238","CVE-2026-6653","CVE-2026-8286","CVE-2026-9547","CVE-2026-11822","CVE-2026-11824","CVE-2026-11979","CVE-2026-13757","CVE-2026-14164","CVE-2026-15588","CVE-2026-16118","CVE-2026-29181","CVE-2026-41989","CVE-2026-48864","CVE-2026-54369","CVE-2026-54370","CVE-2026-54371","CVE-2026-58010","CVE-2026-58011","CVE-2026-58012","CVE-2026-58013","CVE-2026-58014","CVE-2026-58015","CVE-2026-58016","CVE-2026-58055"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-19938","identifiers":["EUVD-2026-19938","CVE-2026-29181","GHSA-mh2q-q3fh-2475"]},"retained":false,"historicalAffected":[]},{"revision":"758410388ad54bfb85f19b9205707a88","observedAt":"2026-10-25T07:19:08.798+00:00","statement":{"source":"nvd","id":"CVE-2026-29181","aliases":[],"title":"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 …","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.","state":0,"publishedAt":"2026-04-07T21:17:16.003+00:00","modifiedAt":"2026-09-11T13:17:25.487+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"},{"system":"CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475","https://access.redhat.com/errata/RHSA-2026:25271","https://access.redhat.com/errata/RHSA-2026:47735","https://access.redhat.com/errata/RHSA-2026:61314","https://access.redhat.com/errata/RHSA-2026:63140","https://access.redhat.com/errata/RHSA-2026:66521","https://access.redhat.com/security/cve/CVE-2026-29181","https://bugzilla.redhat.com/show_bug.cgi?id=2456252","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29181.json"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-29181","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-770"],"productCriteria":["cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-04-07T21:17:16.003","lastModified":"2026-09-11T13:17:25.487"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-29181","identifiers":["CVE-2026-29181"]},"retained":false,"historicalAffected":[]},{"revision":"a820595c74e04d6bbe2f12422a878b7f","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-mh2q-q3fh-2475","aliases":["CVE-2026-29181","GO-2026-5506"],"title":"OpenTelemetry-Go: multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)","description":"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.\n\n## severity\n\nHIGH (availability / remote request amplification)\n\n## relevant links\n\n- repository: https://github.com/open-telemetry/opentelemetry-go\n- pinned callsite: https://github.com/open-telemetry/opentelemetry-go/blob/1ee4a4126dbdd1bc79e9fae072fa488beffac52a/propagation/baggage.go#L58\n\n## vulnerability details\n\n**pins:** open-telemetry/opentelemetry-go@1ee4a4126dbdd1bc79e9fae072fa488beffac52a\n**as-of:** 2026-02-04\n**policy:** direct (no program scope provided)\n\n**callsite:** propagation/baggage.go:58 (`extractMultiBaggage`)\n**attacker control:** inbound HTTP request headers (many `baggage` field-values) → `propagation.HeaderCarrier.Values(\"baggage\")` → repeated `baggage.Parse` + member aggregation\n\n### root cause\n\n`extractMultiBaggage` iterates over all `baggage` header field-values and parses each one independently, then appends members into a shared slice. the 8192-byte parsing cap applies per header value, but the multi-value path repeats that work once per header line (bounded only by the server/proxy header byte limit).\n\n### impact\n\nin a default `net/http` configuration (max header bytes 1mb), a single request with many `baggage:` header field-values can cause large per-request allocations and increased latency.\n\nexample from the attached PoC harness (darwin/arm64; 80 values; 40 requests):\n\n- canonical: `per_req_alloc_bytes=10315458` and `p95_ms=7`\n- control: `per_req_alloc_bytes=133429` and `p95_ms=0`\n\n## proof of concept\n\ncanonical:\n\n```bash\nmkdir -p poc\nunzip poc.zip -d poc\ncd poc\nmake test\n```\n\noutput (excerpt):\n\n```\n[CALLSITE_HIT]: propagation/baggage.go:58 extractMultiBaggage\n[PROOF_MARKER]: baggage_multi_value_amplification p95_ms=7 per_req_alloc_bytes=10315458 per_req_allocs=16165\n```\n\ncontrol:\n\n```bash\ncd poc\nmake control\n```\n\ncontrol output (excerpt):\n\n```\n[NC_MARKER]: baggage_single_value_baseline p95_ms=0 per_req_alloc_bytes=133429 per_req_allocs=480\n```\n\n**expected:** multiple `baggage` header field-values should be semantically equivalent to a single comma-joined `baggage` value and should not multiply parsing/alloc work within the effective header byte budget.\n**actual:** multiple `baggage` header field-values trigger repeated parsing and member aggregation, causing high per-request allocations and increased latency even when each individual value is within 8192 bytes.\n\n## fix recommendation\n\navoid repeated parsing across multi-values by enforcing a global budget and/or normalizing multi-values into a single value before parsing. one mitigation approach is to treat multi-values as a single comma-joined string and cap total parsed bytes (for example 8192 bytes total).\n\n**fix accepted when:** under the default PoC harness settings, canonical stays within 2x of control for `per_req_alloc_bytes` and `per_req_allocs`, and `p95_ms` stays below 2ms.\n\n\n[poc.zip](https://github.com/user-attachments/files/25079945/poc.zip)\n[PR_DESCRIPTION.md](https://github.com/user-attachments/files/25079946/PR_DESCRIPTION.md)","state":0,"publishedAt":"2026-04-07T20:12:57+00:00","modifiedAt":"2026-09-10T03:51:02.2652292+00:00","affected":[{"ecosystem":"Go","name":"go.opentelemetry.io/otel","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.36.0"},{"kind":"fixed","version":"1.41.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475","https://nvd.nist.gov/vuln/detail/CVE-2026-29181","https://github.com/open-telemetry/opentelemetry-go/pull/7880","https://github.com/open-telemetry/opentelemetry-go/commit/aa1894e09e3fe66860c7885cb40f98901b35277f","https://github.com/open-telemetry/opentelemetry-go","https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.41.0"],"sourceUrl":"https://github.com/advisories/GHSA-mh2q-q3fh-2475","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mh2q-q3fh-2475","identifiers":["GHSA-mh2q-q3fh-2475","CVE-2026-29181","GO-2026-5506"]},"retained":false,"historicalAffected":[]},{"revision":"c616cf562d3a44b3bf78c770e39fa221","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-5506","aliases":["CVE-2026-29181","GHSA-mh2q-q3fh-2475"],"title":"OpenTelemetry-Go: Multi-value baggage header extraction causes excessive allocations in go.opentelemetry.io/otel","description":"OpenTelemetry-Go: Multi-value baggage header extraction causes excessive allocations in go.opentelemetry.io/otel","state":0,"publishedAt":"2026-07-24T18:35:55+00:00","modifiedAt":"2026-08-06T15:11:52.4235784+00:00","affected":[{"ecosystem":"Go","name":"go.opentelemetry.io/otel","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.36.0"},{"kind":"fixed","version":"1.41.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475","https://github.com/open-telemetry/opentelemetry-go/commit/aa1894e09e3fe66860c7885cb40f98901b35277f","https://github.com/open-telemetry/opentelemetry-go/pull/7880","https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.41.0"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-5506","license":"OSV · upstream source license applies","key":"osv:GO-2026-5506","identifiers":["GO-2026-5506","CVE-2026-29181","GHSA-mh2q-q3fh-2475"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; 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