HIGH 8.5 NVD
CVE-2026-102566
CTranslate2 before 4.8.1 contains a heap-based buffer overflow in the binary model loader that fails to validate payload length against allocated buffer size. A
CTranslate2 before 4.8.1 contains a heap-based buffer overflow in the binary model loader that fails to validate payload length against allocated buffer size. Attackers can craft malicious model files with oversized payload lengths to write past heap allocation boundaries, causing crashes or arbitrary code execution.
References
- https://github.com/OpenNMT/CTranslate2
- https://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L656-L657
- https://github.com/OpenNMT/CTranslate2/commit/d9b991e0700933a0c05373df8b52ed89cdcab96d
- https://github.com/OpenNMT/CTranslate2/pull/2068
- https://github.com/OpenNMT/CTranslate2/releases/tag/v4.8.1
This high severity vulnerability with a CVSS score of 8.5 was published on 2026-09-29 via NVD.
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