CVE-2026-122189 OpenPPL ppl.nn CUDA Optimizer opt_graph.cc InitQuantization out-of-bounds
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-122189?
CVE-2026-122189 is a medium-severity vulnerability in OpenPPL ppl.nn, published on 5 Nov 2026.
Official description
A vulnerability has been found in OpenPPL ppl.nn up to bb84dc9952809b3a5a0036858a3d9f68af1c83d5. The affected element is the function OptGraph::InitQuantization of the file src/ppl/nn/engines/cuda/optimizer/opt_graph.cc of the component CUDA Optimizer. Such manipulation of the argument per_channel/bit_width/tensor_max/tensor_min/scale leads to out-of-bounds read. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-122189?
How do I fix CVE-2026-122189?
No fix has been published for CVE-2026-122189 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-122189 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-122189 exists.
Sources
Also known as GHSA-3rww-8pjc-22w4.