Improper Enforcement of Message Integrity During Transmission in a Communication Channel Affecting postgresql18-plpython3-debuginfo package, versions <0:18.6-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.07% (1st percentile)

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  • Snyk IDSNYK-AMZN2023-POSTGRESQL18PLPYTHON3DEBUGINFO-19472486
  • published1 Sept 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-14681  (opens in a new tab)
CWE-924  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 postgresql18-plpython3-debuginfo to version 0:18.6-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-2079.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql18-plpython3-debuginfo package and not the postgresql18-plpython3-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1