{"id":"CVE-2026-111140","state":"PUBLISHED","title":"libregf through 20260526 Heap Out-of-Bounds Read via libregf_value_item_read_value_data","description":"libregf through 20260526 contains a heap out-of-bounds read in libregf_value_item_read_value_data() because it bounds value data size without subtracting the 4-byte old-format cell offset. Attackers can supply a crafted version 1.0/1.1 REGF hive with a value data cell ending its hive bin to leak adjacent heap bytes or crash parsers like regfexport and plaso.","publishedAt":"2026-10-15T18:57:32.622Z","updatedAt":"2026-10-21T01:19:40.902Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["libyal libregf"],"affected":[{"vendor":"libyal","product":"libregf","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"20260526","versionType":"custom"}],"collectionURL":"https://github.com/libyal/libregf","repo":"https://github.com/libyal/libregf"}],"references":["https://hackmd.io/@haind-pwn/libregf-value-data-offset-oob-read","https://github.com/libyal/libregf/blob/1a4bd856484263caa4a5e0d6ba377c3dc69150c7/libregf/libregf_value_item.c#L789-L935","https://github.com/libyal/libregf","https://www.vulncheck.com/advisories/libregf-through-20260526-heap-out-of-bounds-read-via-libregf-value-item-read-value-data"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/111xxx/CVE-2026-111140.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111140","state":"PUBLISHED","datePublished":"2026-10-15T18:57:32.622Z","dateUpdated":"2026-10-21T01:19:40.902Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-15T17:03:56.493Z"},"containers":{"cna":{"title":"libregf through 20260526 Heap Out-of-Bounds Read via libregf_value_item_read_value_data","descriptions":[{"lang":"en","value":"libregf through 20260526 contains a heap out-of-bounds read in libregf_value_item_read_value_data() because it bounds value data size without subtracting the 4-byte old-format cell offset. 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