CVE-2026-102567 CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization
Attackers can craft malicious model files to trigger out-of-bounds heap reads in CTranslate2, causing crashes or disclosing adjacent memory contents.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-102567?
CVE-2026-102567 is a medium-severity memory corruption vulnerability in OpenNMT CTranslate2, published on 29 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-125
Which versions are affected by CVE-2026-102567?
How do I fix CVE-2026-102567?
No fix has been published for CVE-2026-102567 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-102567 being exploited?
There is no known exploitation of CVE-2026-102567 in the wild and no public exploit code.
Sources
Also known as GHSA-wjw8-fx44-f93w.