CVE-2026-128080
Received Received - Intake

Information Exposure in OpenTelemetry JavaScript

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: GitHub, Inc.

Description
OpenTelemetry JavaScript is the OpenTelemetry JavaScript client. From 0.204.0 until 0.222.0, @opentelemetry/instrumentation-http writes the raw query string from incoming HTTP requests to the url.query server-span attribute without applying the redactedQueryParams protection used for outgoing spans. Services receiving signed URLs or other credentials in query parameters can therefore export still-valid secrets to tracing backends, where observability infrastructure and users with span-read access may read them. The redactedQueryParams option does not protect incoming spans in affected versions. This issue is fixed in version 0.222.0.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
AI Q&A
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2026-128080
EUVD
EUVD-2026-125687

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
opentelemetry javascript From 0.204.0 (inc) to 0.222.0 (inc)
opentelemetry javascript 0.222.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-532 The product writes sensitive information to a log file.
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

OpenTelemetry JavaScript versions 0.204.0 to 0.222.0 have a flaw where raw query strings from incoming HTTP requests are written to server-span attributes without redaction. This exposes sensitive data like credentials in query parameters to tracing backends.

Detection Guidance

Check if your system uses OpenTelemetry JavaScript versions between 0.204.0 and 0.222.0. Inspect HTTP request logs for exposed query parameters containing sensitive data like credentials or tokens.

Impact Analysis

If your service uses signed URLs or passes credentials in query parameters, attackers with access to tracing backends could steal these secrets. This may lead to unauthorized access or data breaches.

Compliance Impact

This vulnerability could violate compliance requirements for data protection (e.g., GDPR, HIPAA) by exposing sensitive information in logs or traces. Organizations may face penalties for failing to protect personal or health data.

Mitigation Strategies

Upgrade to OpenTelemetry JavaScript version 0.222.0 or later to apply the fix. Review and redact sensitive query parameters in incoming HTTP requests if upgrading is not immediately possible.

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