CVE-2026-14678 Affecting postgresql15-server package, versions <0:15.19-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-AMZN2023-POSTGRESQL15SERVER-19469999
  • published1 Sept 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

NewCVE-2026-14678  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 postgresql15-server to version 0:15.19-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-2077.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql15-server package and not the postgresql15-server package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.