OpenPPL ppl.nn up to bb84dc9952809b3a5a0036858a3d9f68af1c83d5 CUDA Optimizer opt_graph.cc InitQuantization per_channel/bit_width/tensor_max/tensor_min/scale out-of-bounds

Summaryinfo

A vulnerability was found in OpenPPL ppl.nn up to bb84dc9952809b3a5a0036858a3d9f68af1c83d5. It has been classified as critical. The impacted element is the function OptGraph::InitQuantization of the file src/ppl/nn/engines/cuda/optimizer/opt_graph.cc of the component CUDA Optimizer. Performing a manipulation of the argument per_channel/bit_width/tensor_max/tensor_min/scale results in out-of-bounds. This vulnerability was named CVE-2026-122189. The attack may be initiated remotely. In addition, an exploit is available. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability classified as critical has been found in OpenPPL ppl.nn up to bb84dc9952809b3a5a0036858a3d9f68af1c83d5. This affects the function OptGraph::InitQuantization of the file src/ppl/nn/engines/cuda/optimizer/opt_graph.cc of the component CUDA Optimizer. The manipulation of the argument per_channel/bit_width/tensor_max/tensor_min/scale with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-122189. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• OpenPPL

Name

• ppl.nn

Version

• bb84dc9952809b3a5a0036858a3d9f68af1c83d5

Website

• Product: https://github.com/OpenPPL/ppl.nn/

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CPE 2.2info

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Accepted

• Submit #1028313: OpenPPL ppl.nn commit bb84dc9952809b3a5a0036858a3d9f68af1c83d5 Out-of-bounds Read (by Dem000000)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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