{"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"],"patched":["hardened_images"],"published":"2026-09-30","updated":"2026-10-04","sourceUpdated":"2026-10-04T00:16:35.563","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://lists.debian.org/debian-lts-announce/2026/10/msg00008.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-r9hj-j2rw-4q3m","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"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"},{"url":"https://access.redhat.com/errata/RHSA-2026:74972"},{"url":"https://access.redhat.com/errata/RHSA-2026:81522"},{"url":"https://access.redhat.com/errata/RHSA-2026:82845"},{"url":"https://access.redhat.com/errata/RHSA-2026:81532"},{"url":"https://access.redhat.com/errata/RHSA-2026:81613"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-30T18:44:17.818308Z"},"epss":0.00269,"epssPercentile":0.18915,"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 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-103111.json)\n- **RHSA-2026:74972** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-02 · [advisory](https://access.redhat.com/errata/RHSA-2026:74972)\n- **RHSA-2026:81522** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-10-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:81522)\n- **RHSA-2026:82845** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat CodeReady Linux Builder EUS (v.9.6) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:82845)\n- **RHSA-2026:81532** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-10-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:81532)\n- **RHSA-2026:81613** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-10-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:81613)","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":41.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":213941,"id":"CVE-2026-103111","ts":1790799887151,"field":"exploit_available","old":"false","new":"true"}]}