CVE-2026-103111

State: Published
Severity: 7.6 High
Published: Sep 30, 2026
Updated: Oct 3, 2026
Reserved: Sep 30, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.6 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L	mitre

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
PCRE2PCRE	before 10.49Affected

References

https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-r9hj-j2rw-4q3m
https://lists.debian.org/debian-lts-announce/2026/10/msg00008.html

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