All vulnerabilities

Servers and applications

CVE-2026-14681

Improper enforcement of message integrity in PostgreSQL GSSAPI support allows a user to negotiate GSSAPI contrary to pg_hba.conf rules, via initial direct TLS connection. Despite a pg_hba.conf that appears to require GSSAPI, the connection may exchange data over TLS encryption alone. If the TLS settings are more permissive than the GSS settings, the connection may continue with lesser…

Severity
Medium 4.2
Published
13 Aug 2026
Last changed
29 Aug 2026
Added to UpHeron
16 Oct 2026
Fixed in
17.11, 18.5
Sources
NVD

Affected software

SoftwareAffected versions
PostgreSQLServers and applications · cpe:a:postgresql:postgresql
  • From 17.0 before 17.11
  • From 18.0 before 18.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-14681
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-14681