Vulnerability DatabaseCVE-2026-103111
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CVE-2026-103111
Published:September 30, 2026
Updated:October 12, 2026
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.
Affected Packages
https://github.com/PCRE2Project/pcre2.git (GITHUB):
Affected version(s) >=pcre2-10.00 <pcre2-10.49
Fix Suggestion:
Update to version pcre2-10.49
Related Resources (4)
https://lists.debian.org/debian-lts-announce/2026/10/msg00008.html
https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-r9hj-j2rw-4q3m
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103111.json
https://nvd.nist.gov/vuln/detail/CVE-2026-103111
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CVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.21