CVE-2026-59892 Details
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.
A denial-of-service vulnerability has been identified in the OpenTelemetry JavaScript Jaeger propagator, specifically in versions prior to 2.9.0. The issue arises because the propagator decodes HTTP header values using decodeURIComponent() without proper error handling. This flaw allows an unauthenticated remote attacker to send a malformed percent-encoded value in the uber-trace-id or uberctx-* headers, causing an uncaught URIError that terminates the Node.js process. The vulnerability is active when JaegerPropagator is registered as the global propagator.
Update the @opentelemetry/propagator-jaeger package to version 2.9.0 or later. If an immediate update is not possible, remove or validate the uber-trace-id and uberctx-* headers from incoming requests at the network edge, using a reverse proxy or API gateway to filter these headers before they reach the application.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 8, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-248 | Uncaught Exception | [email protected] |
Affected Products
No affected product data is available for this CVE.
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | CVE Modified | CISA-ADP |
| Jul 8, 2026 | New CVE Received | [email protected] |