CVE-2026-102567CWE-125

CVE-2026-102567

Medium · published September 29, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
1.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
CVSS v4.0
6.9 · 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
EPSS
0.00120 · 1.7th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-09-29T19:17Z
References (6)
https://github.com/OpenNMT/CTranslate2 · [email protected]https://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L81-L87 · [email protected]https://github.com/OpenNMT/CTranslate2/commit/d9b991e0700933a0c05373df8b52ed89cdcab96d · [email protected]https://github.com/OpenNMT/CTranslate2/pull/2068 · [email protected]https://github.com/OpenNMT/CTranslate2/releases/tag/v4.8.1 · [email protected]https://www.vulncheck.com/advisories/ctranslate2-before-4.8.1-out-of-bounds-read-via-model-deserialization · [email protected]
EPSS history
Timeline
  • 01 OCT 03:44Z
    EPSS moved — → 0%
    epss
  • 29 SEP 14:22Z
    CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization
    cvelistv5