CVE-2026-59892
Description
A flaw was found in the @opentelemetry/propagator-jaeger component of OpenTelemetry JavaScript. This vulnerability allows an unauthenticated remote attacker to send specially crafted HTTP header values, specifically uber-trace-id and uberctx-*. The component improperly decodes these values without handling potential errors, leading to an uncaught URIError. Successful exploitation of this flaw can terminate a Node.js process, resulting in a Denial of Service (DoS).
Statement
This flaw affects the @opentelemetry/propagator-jaeger package used by container images that configure the Jaeger trace-context propagator. Exploitation requires an unauthenticated remote actor to send a crafted uber-trace-id or uberctx-* HTTP header value to a service using JaegerPropagator as its active OpenTelemetry propagator, causing an unhandled URIError that terminates the Node.js process (Denial of Service). Red Hat CVSS score (7.5, Important) is consistent with upstream and NVD scoring.
Mitigation
Administrators can mitigate this issue by not configuring JaegerPropagator as the active OpenTelemetry propagator (use W3C Trace Context or B3 propagation instead), or by deploying an ingress/proxy in front of the affected service that validates or strips uber-trace-id and uberctx-* headers before they reach the application. Upgrading to @opentelemetry/propagator-jaeger >= 2.9.0 resolves the issue upstream.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | N/A | 7.5 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Availability,Confidentiality
Technical Impact: DoS: Crash, Exit, or Restart; Read Application Data
An uncaught exception could cause the system to be placed in a state that could lead to a crash, exposure of sensitive information or other unintended behaviors.
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