{"id":"CVE-2026-103111","title":"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.","summary":"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.","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L","cwe":["CWE-787"],"vendor":"PCRE","product":"PCRE2","affected":["PCRE2 < 10.49"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T05:16:45.863","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103111","references":[{"url":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-r9hj-j2rw-4q3m","label":"cve@mitre.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-103111.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-103111"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543797"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-103111"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103111"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-30T04:57:05.265Z","slug":"CVE-2026-103111","body":"## Overview\n\nPCRE2 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Hardened Images, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-09-30 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-103111.json)","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}