{"id":"CVE-2026-86145","state":"PUBLISHED","title":"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 ","description":"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).","publishedAt":"2026-09-05T05:09:25.571Z","updatedAt":"2026-09-08T18:07:49.889Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","source":"mitre"},"assigner":"mitre","products":["PCRE PCRE2"],"affected":[{"vendor":"PCRE","product":"PCRE2","defaultStatus":"unaffected","versions":[{"version":"10.32","status":"affected","lessThan":"10.48","versionType":"custom"}]}],"references":["https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-3r4p-g7gg-ppmf","https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48","http://www.openwall.com/lists/oss-security/2026/09/05/3"],"weaknesses":["CWE-424"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86145.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86145","state":"PUBLISHED","datePublished":"2026-09-05T05:09:25.571Z","dateUpdated":"2026-09-08T18:07:49.889Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-09-05T05:09:25.213Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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)."}],"affected":[{"vendor":"PCRE","product":"PCRE2","defaultStatus":"unaffected","versions":[{"version":"10.32","status":"affected","lessThan":"10.48","versionType":"custom"}]}],"references":[{"url":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-3r4p-g7gg-ppmf"},{"url":"https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-424","description":"CWE-424 Improper Protection of Alternate Path","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-09-05T05:09:25.571Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*","versionStartIncluding":"10.32","versionEndExcluding":"10.48"}]}]}]},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/09/05/3"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-09-05T13:06:54.297Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-08T18:07:40.203419Z","id":"CVE-2026-86145","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-08T18:07:49.889Z"}}]}}}