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CVE-2026-14681

PostgreSQL improper enforcement of GSSAPI encryption when coupled with SSL

Published: Aug 13, 2026Updated: Aug 29, 2026 Sources: CVE List NVDCWE-924
4.2MEDIUM
NVD MITRE
EPSS Score
0.1%
Top 100.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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 protection. Within major versions 17-18, minor versions before PostgreSQL 18.6 and 17.11 are affected. Versions before PostgreSQL 17 are unaffected.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-924

Affected Products

postgresql
oss-project·USaka postgres
postgresqlOn-premDatabase
Databases / relational
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-14681?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://www.postgresql.org/support/security/CVE-2026-14681/
postgresql.org

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