CVE-2026-6637 Affecting postgresql17-test-debuginfo package, versions <0:17.10-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-AMZN2023-POSTGRESQL17TESTDEBUGINFO-17289229
  • published10 Jun 2026
  • disclosed14 May 2026

Introduced: 14 May 2026

CVE-2026-6637  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 postgresql17-test-debuginfo to version 0:17.10-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-1766.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql17-test-debuginfo package and not the postgresql17-test-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Stack buffer overflow in PostgreSQL module "refint" allows an unprivileged database user to execute arbitrary code as the operating system user running the database. A distinct attack is possible if the application declares a user-controlled column as a "refint" cascade primary key and facilitates user-controlled updates to that column. In that case, a SQL injection allows a primary key update value provider to execute arbitrary SQL as the database user performing the primary key update. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

CVSS Base Scores

version 3.1