PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.
https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-r9hj-j2rw-4q3m
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89608
Source: Mitre, NVD
Published: 2026-09-30
Updated: 2026-09-30
Base Score: 8
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:C/A:P
Severity: High
Base Score: 7.6
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
EPSS: 0.00206