{"schema_version":"1","data":[{"id":1665,"advisory_id":"c0b23667-a135-4861-9df8-3ffe59ea3077","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-91752","source_published_at":"2026-09-15T00:35:43.518+00:00","published_at":"2026-10-24T21:05:42.369023+00:00","extraction_method":"structured","technologies":["core-cve","libextractor"],"cve_ids":["CVE-2026-91752"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"GNU libextractor before 1.15 Stack Overflow via OLE2","summary":"GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data. Attackers can craft malicious StarOffice documents that allocate up to 4 MB on the stack, causing stack overflow and crashing any application extracting metadata from the document.","evidence":"cve:CVE-2026-91752","products":[{"name":{"value":"libextractor","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"high","structured":{"id":"CVE-2026-91752","aliases":["CVE-2026-91752"],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","baseScore":8.7,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","userInteraction":"NONE","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","subIntegrityImpact":"NONE","vulnIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnConfidentialityImpact":"NONE"}},{"format":"CVSS","cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}}],"affected":[{"vendor":"GNU","product":"libextractor","versions":[{"status":"affected","version":"0","lessThan":"1.15","versionType":"custom"}],"defaultStatus":"unaffected"}],"modified":"2026-09-24T14:22:22.119Z","provider":"cve","references":["https://github.com/Haitam-lazaar/libextractor-ole2-rce","https://git.gnunet.org/gnunet/libextractor/commit/04004eb19033e093938138b09befdf31e71e8522.html","https://git.gnunet.org/gnunet/libextractor/commit/2781c7e9095f4ddaff4f535d69342f3903b18422.html","https://www.gnu.org/software/libextractor/","https://www.vulncheck.com/advisories/gnu-libextractor-before-1.15-stack-overflow-via-ole2"],"provider_metadata":{"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/09/16/16"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-09-17T00:17:44.453Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-91752","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-17T18:37:51.070693Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-17T19:29:34.522Z"}}],"cna":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-24T14:22:22.119Z"}}},"related_cves":[{"value":"CVE-2026-91752","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"}}],"next_after":1665,"next_before":1665}