CVE-2026-17513 ggml-org whisper.cpp ggml.c ggml_ftype_to_ggml_type assertion
A local attacker can trigger a reachable assertion in whisper.cpp, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17513?
CVE-2026-17513 is a medium-severity denial of service vulnerability in ggml-org whisper.cpp, published on 27 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in ggml-org whisper.cpp 95ea8f9b. Affected is the function ggml_ftype_to_ggml_type of the file ggml/src/ggml.c. The manipulation of the argument ftype results in reachable assertion. The attack requires a local approach. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-617
Which versions are affected by CVE-2026-17513?
How do I fix CVE-2026-17513?
No fix has been published for CVE-2026-17513 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-17513 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-17513 exists.
Sources
Also known as DEBIAN-CVE-2026-17513, GHSA-hqg6-4q5h-9ggc, UBUNTU-CVE-2026-17513.