CVE-2026-59892
HIGHOpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/open-telemetry/opentelemetry-js/security/advisories/GHSA-45rx-2jwx-cxfr
X_Refsource_Misc x_refsource_misc
https://github.com/open-telemetry/opentelemetry-js/commit/b1c196d49d54caae59741cca0a9d57d101d7ea88
X_Refsource_Misc x_refsource_misc
https://github.com/open-telemetry/opentelemetry-js/releases/tag/v2.9.0
Scores
CVSS v3
7.5
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-248
Status
published
Products (1)
open-telemetry/opentelemetry-js
< 2.9.0
Published
Jul 08, 2026
Tracked Since
Jul 08, 2026