{"id":"CVE-2026-89161","details":"In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.","modified":"2026-09-13T03:30:17.717828742Z","published":"2026-09-11T04:11:51.666Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89161.json","cna_assigner":"mitre","cwe_ids":["CWE-590"]},"references":[{"type":"WEB","url":"https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89161.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89161"},{"type":"FIX","url":"https://github.com/PCRE2Project/pcre2/pull/937"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pcre2project/pcre2","events":[{"introduced":"0"},{"fixed":"7978954dbd2efc6f2196869290553cf1871b4ce6"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"10.48"},{"introduced":"PCRE2"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["pcre2-10.39","pcre2-10.40","pcre2-10.44","pcre2-10.43","pcre2-10.42","pcre2-10.43-RC1","pcre2-10.41","pcre2-10.38","pcre2-10.38-RC1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89161.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}