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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-55701

OpenTelemetry githubreceiver silently ignores configured required_headers authentication

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

The OpenTelemetry Collector Contrib repository contains components for the OpenTelemetry Collector. Prior to 0.151.0, the githubreceiver validates the receiver/githubreceiver/config.go RequiredHeaders configuration at startup, but receiver/githubreceiver/trace_receiver.go handleReq() does not check those headers on incoming webhook requests. An unauthenticated sender can therefore bypass an operator's required_headers authentication control and submit arbitrary webhook payloads. When the Secret field is empty, github.ValidatePayload also skips HMAC validation, leaving the webhook endpoint without either configured authentication mechanism. Successful exploitation can inject fabricated CI/CD trace data into the observability pipeline. This issue is fixed in version 0.151.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

open-telemetry opentelemetry-collector-contrib

  • < 0.151.0affected

open-telemetry github.com/open-telemetry/opentelemetry-collector-contrib/receiver/githubreceiver

  • < 0.151.0affected

References