CVE-2026-59892
OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Awaiting Analysis | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
open-telemetry · opentelemetry-js
- affected < 2.9.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npm@opentelemetry/propagator-jaegerGHSA-45rx-2jwx-cxfr (opens in a new tab)
References (3)
- https://github.com/open-telemetry/opentelemetry-js/security/advisories/GHSA-45rx-2jwx-cxfr (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/open-telemetry/opentelemetry-js/commit/b1c196d49d54caae59741cca0a9d57d101d7ea88 (opens in a new tab)x_refsource_MISC
- https://github.com/open-telemetry/opentelemetry-js/releases/tag/v2.9.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-45rx-2jwx-cxfr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-59892)Record last updated .