{"id":"CVE-2026-59892","aliases":["GHSA-45rx-2jwx-cxfr"],"url":"https://o3.security/vulnerability/CVE-2026-59892","summary":"OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header","details":"OpenTelemetry JavaScript is the OpenTelemetry JavaScript client. Prior to 2.9.0, @opentelemetry/propagator-jaeger decodes incoming uber-trace-id and uberctx-* HTTP header values with decodeURIComponent() without handling decode errors, allowing an unauthenticated remote attacker to send a malformed percent-encoded value that throws an uncaught URIError and terminates a Node.js process using JaegerPropagator as the active propagator. This issue is fixed in version 2.9.0.","published":"2026-07-08T16:03:58.439Z","modified":"2026-08-12T03:51:20.901249199Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@opentelemetry/propagator-jaeger","fixedVersion":"2.9.0"}],"fix":{"url":"https://github.com/open-telemetry/opentelemetry-js/commit/b1c196d49d54caae59741cca0a9d57d101d7ea88","label":"open-telemetry/opentelemetry-js@b1c196d"},"references":[{"type":"WEB","url":"https://github.com/open-telemetry/opentelemetry-js/releases/tag/v2.9.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59892.json"},{"type":"ADVISORY","url":"https://github.com/open-telemetry/opentelemetry-js/security/advisories/GHSA-45rx-2jwx-cxfr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59892"},{"type":"FIX","url":"https://github.com/open-telemetry/opentelemetry-js/commit/b1c196d49d54caae59741cca0a9d57d101d7ea88"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:20.901249199Z"}}