CVE-2026-15742
PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound
- Published
- Aug 13, 2026
- Updated
- Aug 29, 2026
- Assigning CNA
- PostgreSQL
- Evidence observed
- Oct 30, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 48.5%
- Model date
- Oct 31, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Sources
- ExploitsPoC
Original CVEs, exploit PoCs, and security advisories with detailed vulnerability chains, privilege escalation, and container escape techniques for penetration testing and research.
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