Vulnerabilities CVE-2026-15742

CVE-2026-15742

High

Open

TLP:CLEAR

PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound

NVD CVE.org

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Description

Integer wraparound in PostgreSQL fuzzystrmatch allows a user to direct writes to a huge range of addresses, executing arbitrary code as the operating system user running the database, via extreme inputs to SQL function levenshtein() or levenshtein_less_equal(). Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Details

CVSS Score: 8.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Aug 13, 2026
Last Modified: Aug 13, 2026

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