CVE-2026-15742 — PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound

CVE-2026-15742

PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
n/a / PostgreSQL	affected 18 before 18.6; affected 17 before 17.11; affected 16 before 16.15; affected 15 before 15.19; affected 0 before 14.24

CWE

CWE-190

References

https://www.postgresql.org/support/security/CVE-2026-15742/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.