CVE-2026-122189
OpenPPL ppl.nn CUDA Optimizer opt_graph.cc InitQuantization out-of-bounds
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| ppl.nn OpenPPL |
bb84dc9952809b3a5a0036858a3d9f68af1c83d5 (affected) | CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 5.3 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | CNA: VulDB |
| 3.1 / 6.3 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | CNA: VulDB |
| 3.0 / 6.3 medium |
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | CNA: VulDB |
| 2.0 / 7.5 high |
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C | CNA: VulDB |
Exploit evidence
- https://github.com/user-attachments/files/33393000/poc.zip
exploit · CNA: VulDB
References
- https://vuldb.com/vuln/431163CNA: VulDB · vdb-entry, technical-description
- https://vuldb.com/vuln/431163/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-122189CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/1028313CNA: VulDB · third-party-advisory
- https://github.com/OpenPPL/ppl.nn/issues/975CNA: VulDB · issue-tracking
- https://github.com/user-attachments/files/33393000/poc.zipCNA: VulDB · exploit
- https://github.com/OpenPPL/ppl.nn/CNA: VulDB · product
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