CVE-2026-59892CWE-248

OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header

High · published July 8, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
55.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00784 · 55.6th percentile
Weakness
CWE-248 · Uncaught Exception
Published
2026-07-08T16:03Z
EPSS history
Timeline
  • 08 JUL 16:03Z
    OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header
    cvelistv5