CVE Catalog

CVE-2026-19538

HighCVSS 8.2
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.35%

28th percentile - higher than 28% of all known CVEs

Summary

BLOCKED access control list items that are evaluated to deny access on the proxy protocol port can be completely bypassed when connecting over TCP or TLS and sending the query twice on a connection that is kept open.

Risk Assessment

Bypassing access rules may allow unauthorized clients to access protected resources, compromising security.

Recommendation

Update the software to a patched version and test access rules after updating.

Related vulnerabilities

Original NVD description (English source)

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open.

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