{"id":"CVE-2026-102567","state":"PUBLISHED","title":"CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization","description":"CTranslate2 before 4.8.1 contains an out-of-bounds heap read vulnerability in the binary model loader when deserializing string fields without null terminators. Attackers can craft malicious model files to trigger heap memory reads past buffer boundaries, causing crashes or disclosing adjacent heap memory contents.","publishedAt":"2026-09-29T14:22:36.720Z","updatedAt":"2026-09-29T14:57:32.533Z","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":["OpenNMT CTranslate2"],"affected":[{"vendor":"OpenNMT","product":"CTranslate2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.8.1","versionType":"semver"},{"version":"4.8.1","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/OpenNMT/CTranslate2/pull/2068","https://github.com/OpenNMT/CTranslate2/commit/d9b991e0700933a0c05373df8b52ed89cdcab96d","https://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L81-L87","https://github.com/OpenNMT/CTranslate2/releases/tag/v4.8.1","https://github.com/OpenNMT/CTranslate2","https://www.vulncheck.com/advisories/ctranslate2-before-4.8.1-out-of-bounds-read-via-model-deserialization"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/102xxx/CVE-2026-102567.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102567","state":"PUBLISHED","datePublished":"2026-09-29T14:22:36.720Z","dateUpdated":"2026-09-29T14:57:32.533Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-29T13:43:14.954Z"},"containers":{"cna":{"title":"CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization","descriptions":[{"lang":"en","value":"CTranslate2 before 4.8.1 contains an out-of-bounds heap read vulnerability in the binary model loader when deserializing string fields without null terminators. Attackers can craft malicious model files to trigger heap memory reads past buffer boundaries, causing crashes or disclosing adjacent heap memory contents."}],"affected":[{"vendor":"OpenNMT","product":"CTranslate2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.8.1","versionType":"semver"},{"version":"4.8.1","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/OpenNMT/CTranslate2/pull/2068","tags":["issue-tracking","patch"],"name":"Pull Request #2068"},{"url":"https://github.com/OpenNMT/CTranslate2/commit/d9b991e0700933a0c05373df8b52ed89cdcab96d","tags":["patch"],"name":"Patch Commit"},{"url":"https://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L81-L87","tags":["technical-description"]},{"url":"https://github.com/OpenNMT/CTranslate2/releases/tag/v4.8.1","tags":["release-notes"],"name":"CTranslate2 v4.8.1 Release Notes"},{"url":"https://github.com/OpenNMT/CTranslate2","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/ctranslate2-before-4.8.1-out-of-bounds-read-via-model-deserialization","name":"VulnCheck Advisory: CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"Out-of-bounds Read","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-29T14:22:36.720Z"},"datePublic":"2026-07-02T00:00:00.000Z","credits":[{"lang":"en","value":"Chegne Eu Joe","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-29T14:57:23.531287Z","id":"CVE-2026-102567","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-29T14:57:32.533Z"}}]}}}