GO-2026-5544 opentelemetry-collector-contrib's azureauthextension Authenticate method does not validate bearer tokens, allowing auth bypass via replay in github.com/open-telemetry/opentelemetry-collector-contrib/extension/azureauthextension

opentelemetry-collector-contrib's azureauthextension Authenticate method does not validate bearer tokens, allowing auth bypass via replay in github.com/open-telemetry/opentelemetry-collector-contrib/extension/azureauthextension...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the azureauthextension method. An attacker can gain unauthorized access to telemetry ingestion endpoints by replaying a valid Azure access token for any scope the configured identity c...

GHSA-PJV4-3C63-699F opentelemetry-collector-contrib's azureauthextension Authenticate method does not validate bearer tokens, allowing auth bypass via replay

Summary A server-side authentication bypass in azureauthextension allows any party who holds a single valid Azure access token for any scope the collector's configured identity can mint for to authenticate to any OpenTelemetry receiver that uses auth: azureauth. The extension's Authenticate metho...

PT-2026-38281

Name of the Vulnerable Software and Affected Versions azureauthextension versions 0.124.0 through 0.150.0 Description A server-side authentication bypass exists in the azureauthextension when used by an OpenTelemetry receiver with auth: azure auth. The Authenticate function fails to validate...