{"id":"CVE-2026-86145","details":"PCRE2 before 10.48 allows a pcre2_dfa_match out-of-bounds write because reuse of a cached workspace block, in a recursive DFA matching workspace, lacks a size check (even though a newly allocated block, for the same purpose, does have a size check). This outcome requires an attacker-controlled regular expression, or a recursive pattern in conjunction with a small heap limit (this can be set through the API).","aliases":["GHSA-3r4p-g7gg-ppmf"],"modified":"2026-10-28T02:30:51.901795766Z","published":"2026-09-05T05:09:25.571Z","related":["ALSA-2026:81522","ALSA-2026:81532","ALSA-2026:81613","ALSA-2026:84799","SUSE-SU-2026:23740-1","SUSE-SU-2026:23840-1","SUSE-SU-2026:23891-1","SUSE-SU-2026:23906-1","SUSE-SU-2026:4201-1","SUSE-SU-2026:4241-1","SUSE-SU-2026:4458-1","openSUSE-SU-2026:21938-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86145.json","cna_assigner":"mitre","cwe_ids":["CWE-424"]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/09/05/3"},{"type":"WEB","url":"https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86145.json"},{"type":"ADVISORY","url":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-3r4p-g7gg-ppmf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86145"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pcre2project/pcre2","events":[{"introduced":"89296a3b3b6de2a58b4c7f2bb3d780a4f97cad39"},{"fixed":"7978954dbd2efc6f2196869290553cf1871b4ce6"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"10.32"},{"fixed":"10.48"}],"source":"AFFECTED_FIELD"},{"range":[{"introduced":"2"},{"fixed":"10.48"}],"source":"DESCRIPTION"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86145.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L"}]}