CVE-2026-59892: CWE-248: Uncaught Exception in open-telemetry opentelemetry-js
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.
AI Analysis
Technical Summary
The vulnerability (CVE-2026-59892) affects the OpenTelemetry JavaScript client, specifically the @opentelemetry/propagator-jaeger module. Before version 2.9.0, the module decodes incoming uber-trace-id and uberctx-* HTTP headers using decodeURIComponent() without handling potential decode errors. An unauthenticated remote attacker can exploit this by sending a malformed percent-encoded value that triggers an uncaught URIError, causing the Node.js process to terminate unexpectedly. This denial-of-service condition is resolved in version 2.9.0.
Potential Impact
Exploitation results in a denial-of-service (DoS) condition by crashing the Node.js process running the vulnerable OpenTelemetry JavaScript client with JaegerPropagator active. There is no impact on confidentiality or integrity, only availability is affected.
Mitigation Recommendations
Upgrade to OpenTelemetry JavaScript version 2.9.0 or later, where this issue is fixed. Patch status is confirmed by the vendor advisory indicating the fix in version 2.9.0. No other mitigations are specified.
CVE-2026-59892: CWE-248: Uncaught Exception in open-telemetry opentelemetry-js
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.
CVSS v3.1
Score 7.5high
Affected software
pkg:npm/@opentelemetry/propagator-jaegerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability (CVE-2026-59892) affects the OpenTelemetry JavaScript client, specifically the @opentelemetry/propagator-jaeger module. Before version 2.9.0, the module decodes incoming uber-trace-id and uberctx-* HTTP headers using decodeURIComponent() without handling potential decode errors. An unauthenticated remote attacker can exploit this by sending a malformed percent-encoded value that triggers an uncaught URIError, causing the Node.js process to terminate unexpectedly. This denial-of-service condition is resolved in version 2.9.0.
Potential Impact
Exploitation results in a denial-of-service (DoS) condition by crashing the Node.js process running the vulnerable OpenTelemetry JavaScript client with JaegerPropagator active. There is no impact on confidentiality or integrity, only availability is affected.
Mitigation Recommendations
Upgrade to OpenTelemetry JavaScript version 2.9.0 or later, where this issue is fixed. Patch status is confirmed by the vendor advisory indicating the fix in version 2.9.0. No other mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-07T16:40:07.983Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4e7ad4c9d9e3dbe36a7d6d
Added to database: 07/08/2026, 16:29:08 UTC
Last enriched: 07/08/2026, 16:43:27 UTC
Last updated: 07/09/2026, 01:19:25 UTC
Views: 13
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