Out-of-Bounds Heap Read Vulnerability in CTranslate2 by OpenNMT
CVE-2026-102567

6.9MEDIUM

Key Information:

Vendor

Opennmt

Vendor
CVE Published:
29 September 2026

What is CVE-2026-102567?

CTranslate2 versions prior to 4.8.1 contain a vulnerability that allows for out-of-bounds heap reads when deserializing string fields lacking null terminators. This can be exploited by attackers through the use of specially crafted model files, leading to crashes or potential disclosure of sensitive information stored in adjacent heap memory. It's crucial for users to update to version 4.8.1 or later to mitigate these risks effectively.

Affected Version(s)

CTranslate2 0 < 4.8.1

CTranslate2 4.8.1

References

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Chegne Eu Joe
.