CVE-2026-59892
OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header
- State
- Published
- Severity
- 7.5 High
- Published
- Jul 8, 2026
- Updated
- Jul 8, 2026
- Reserved
- Jul 7, 2026
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
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-248 Uncaught Exception
Affected Products
| Product | Versions |
|---|---|
opentelemetry-jsopen-telemetry |
|
References
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