CVE-2026-102566
HIGHCVSS 7.8Description
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.
Timeline
Published:September 29th, 2026 3:17 PM
Last modified:September 30th, 2026 5:23 PM
CVSS Scoring
CVSS v3: 7.8 (HIGH)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- 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
- https://www.vulncheck.com/advisories/ctranslate2-before-4.8.1-heap-buffer-overflow-via-model-bin
Source: NIST NVD · Data may lag official sources by up to one minute