CVE-2026-89157: Pcre PCRE2

High severity, CVSS 7.4. EPSS: 0.3% chance of exploitation in the next 30 days.

PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.

Affected products

• Pcre PCRE2: from 10.30, before 10.48 (fixed in 10.48); version 10.48 only

Published 2026-09-11. Last modified 2026-09-16.