CVE-2026-14647 onnx onnxruntime old.cc convPoolShapeInference_opset19 out-of-bounds
Remote attackers can trigger an out-of-bounds read in ONNX Runtime via crafted models, potentially causing crashes or leaking memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-14647?
CVE-2026-14647 is a medium-severity memory corruption vulnerability in onnx, published on 4 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in onnx up to 1.21.x. This vulnerability affects the function convPoolShapeInference_opset19 of the file onnx/defs/nn/old.cc of the component onnxruntime. This manipulation causes out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Patch name: a7bf3a0f1d18bb62575236ef6e4944980c40e045. It is recommended to apply a patch to fix this issue.
Which versions are affected by CVE-2026-14647?
How do I fix CVE-2026-14647?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-14647 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-14647 exists.
Sources
Also known as AZL-92031, DEBIAN-CVE-2026-14647, ECHO-853a-6a0e-121b, GHSA-226m-2jqq-4xgv, UBUNTU-CVE-2026-14647.