CVE-2026-11329 onnx onnx-mlir Placeholder Node Cache backend.py generate_hash_key weak hash
A weak hash implementation in the ONNX MLIR placeholder node cache allows local attackers to potentially bypass security checks due to predictable hash values.
- 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-2026-11329?
CVE-2026-11329 is a low-severity vulnerability in onnx-mlir, published on 5 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been found in onnx onnx-mlir up to 0.5.0.0. Affected by this issue is the function generate_hash_key of the file src/Runtime/python/torch_onnxmlir/src/torch_onnxmlir/backend.py of the component Placeholder Node Cache Handler. Such manipulation leads to use of weak hash. An attack has to be approached locally. A high complexity level is associated with this attack. The exploitation is known to be difficult. The name of the patch is 72c5187ff6d13c2c2b3d3789b8f5faf99f08a5b4. Applying a patch is advised to resolve this issue.
Which versions are affected by CVE-2026-11329?
How do I fix CVE-2026-11329?
No fix has been published for CVE-2026-11329 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-11329 being exploited?
There is no known exploitation of CVE-2026-11329 in the wild and no public exploit code.
Sources
Also known as GHSA-h7gg-9w38-vh5g.