CVE-2026-103111

high

Description

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.

References

https://lists.debian.org/debian-lts-announce/2026/10/msg00008.html

https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-r9hj-j2rw-4q3m

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89608

Details

Source: Mitre, NVD

Published: 2026-09-30

Updated: 2026-10-04

Risk Information

CVSS v2

Base Score: 8

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:C/A:P

Severity: High

CVSS v3

Base Score: 7.6

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L