Information Exposure Affecting postgresql18-server-debuginfo package, versions <0:18.6-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.25% (17th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2023-POSTGRESQL18SERVERDEBUGINFO-19472161
  • published1 Sept 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-14672  (opens in a new tab)
CWE-204  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 postgresql18-server-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-server-debuginfo package and not the postgresql18-server-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iteration count. This requires the probed user to have a non-default scram_iterations count, because the authentication challenge for a nonexistent user reports the default scram_iterations. Within major versions 16-18, minor versions before PostgreSQL 18.6, 17.11, and 16.15 are affected. Versions before PostgreSQL 16 are unaffected.

CVSS Base Scores

version 3.1