{"id":"CVE-2026-102567","title":"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","summary":"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 …","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwe":["CWE-125"],"vendor":"OpenNMT","product":"CTranslate2","affected":["CTranslate2 < 4.8.1"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T15:17:18.177","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102567","references":[{"url":"https://github.com/OpenNMT/CTranslate2","label":"disclosure@vulncheck.com"},{"url":"https://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L81-L87","label":"disclosure@vulncheck.com"},{"url":"https://github.com/OpenNMT/CTranslate2/commit/d9b991e0700933a0c05373df8b52ed89cdcab96d","label":"disclosure@vulncheck.com"},{"url":"https://github.com/OpenNMT/CTranslate2/pull/2068","label":"disclosure@vulncheck.com"},{"url":"https://github.com/OpenNMT/CTranslate2/releases/tag/v4.8.1","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/ctranslate2-before-4.8.1-out-of-bounds-read-via-model-deserialization","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-29T14:57:23.531287Z"},"ingestedAt":"2026-09-29T16:39:33.257Z","slug":"CVE-2026-102567","body":"## Overview\n\nCTranslate2 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}