CVE Catalog

CVE-2026-12382

HighCVSS 8.2
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.37%

30th percentile - higher than 30% of all known CVEs

Summary

A flaw in the AAP Gateway Envoy proxy configuration fails to remove the Subject HTTP header from client requests in non-mTLS routes to EDA event streams, despite the source code defining its removal. An unauthenticated remote attacker can inject a spoofed Subject header matching a legitimate client certificate DN to bypass mTLS authentication and inject arbitrary events into protected EDA event streams.

Risk Assessment

The organization is at risk of unauthorized access to protected EDA event streams, enabling injection of fake events, data integrity compromise, and potential escalation of attacks on systems managed by AAP.

Recommendation

Immediately update AAP Gateway to a version containing the fix that removes the Subject header in non-mTLS routes and verify the Envoy proxy configuration for other potentially unremoved headers.

Related vulnerabilities

Original NVD description (English source)

A flaw was found in the AAP Gateway Envoy proxy configuration. The non-mTLS route to EDA event streams does not remove the Subject HTTP header from client requests, despite the source code defining requestHeadersToRemove for this header. An unauthenticated remote attacker can inject a spoofed Subject header matching a legitimate client certificate DN to bypass mTLS authentication and inject arbitrary events into protected EDA event streams.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS