{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6654", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-04-20T07:02:28.158Z", "datePublished": "2026-04-20T10:05:52.339Z", "dateUpdated": "2026-04-20T13:14:37.846Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-04-20T10:06:38.044Z"}, "title": "Use-After-Free and Double-Free in IntoIter::drop when element drop panics", "affected": [{"vendor": "Mozilla", "product": "thin-vec", "versions": [{"status": "unaffected", "version": "0.2.16", "lessThanOrEqual": "*", "versionType": "rpm"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "Double-Free / Use-After-Free (UAF) in the `IntoIter::drop` and `ThinVec::clear` functions in the thin_vec crate. A panic in `ptr::drop_in_place` skips setting the length to zero."}], "references": [{"url": "https://github.com/mozilla/thin-vec/security/advisories/GHSA-xphw-cqx3-667j"}], "credits": [{"lang": "en", "value": "Juhyung Son", "type": "finder"}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-415", "lang": "en", "description": "CWE-415 Double Free"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-416", "lang": "en", "description": "CWE-416 Use After Free"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.1, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-04-20T13:14:05.808412Z", "id": "CVE-2026-6654", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-20T13:14:37.846Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Double-Free / Use-After-Free (UAF) in the `IntoIter::drop` and `ThinVec::clear` functions in the thin_vec crate. A panic in `ptr::drop_in_place` skips setting the length to zero."}], "id": "CVE-2026-6654", "lastModified": "2026-04-20T11:16:19.937", "metrics": {}, "published": "2026-04-20T11:16:19.937", "references": [{"source": "security@mozilla.org", "url": "https://github.com/mozilla/thin-vec/security/advisories/GHSA-xphw-cqx3-667j"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Received"}

{}