{"id":"CVE-2026-41178","sourceIdentifier":"security-advisories@github.com","published":"2026-06-04T16:16:37.297","lastModified":"2026-07-22T20:10:00.127","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log errors, enabling DoS via oversized inputs. Versions 1.42.0 and 1.44.0 fix the issue."},{"lang":"es","value":"OpenTelemetry-Go es la implementación en Go de OpenTelemetry. Las versiones 1.41.0 y 1.43.0 eliminaron el rechazo por longitud bruta y esto provoca que 'Parse' procese encabezados de baggage arbitrariamente grandes/inválidos y registre errores, lo que permite DoS mediante entradas sobredimensionadas. Las versiones 1.42.0 y 1.44.0 corrigen el problema."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"open-telemetry","product":"go.opentelemetry.io/otel/baggage","versions":[{"version":"= 1.41.0","status":"affected"},{"version":"= 1.43.0","status":"affected"}]},{"vendor":"open-telemetry","product":"go.opentelemetry.io/otel/propagation","versions":[{"version":"= 1.41.0","status":"affected"},{"version":"= 1.43.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-04T15:46:06.715583Z","id":"CVE-2026-41178","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-789"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:go:*:*","versionEndExcluding":"1.42.0","matchCriteriaId":"162669E6-6DF4-4673-8120-9A0B3D9614A6"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentelemetry:opentelemetry:1.43.0:*:*:*:*:go:*:*","matchCriteriaId":"1417852C-0B60-4DED-A57B-5D346742643E"}]}]}],"references":[{"url":"https://github.com/open-telemetry/opentelemetry-go/pull/7880","source":"security-advisories@github.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835","source":"security-advisories@github.com","tags":["Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Issue Tracking","Patch","Vendor Advisory"]}]}