CVE-2026-122189

    Dashboard / Vulnerabilities / CVE-2026-122189

    CVE-2026-122189

    Published: 5 Nov 2026Last Modified: 7 Nov 2026

    Summary: OpenPPL ppl.nn CUDA Optimizer opt_graph.cc InitQuantization out-of-bounds

    Details: 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.

    References: https://github.com/OpenPPL/ppl.nn/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/122xxx/CVE-2026-122189.json, https://nvd.nist.gov/vuln/detail/CVE-2026-122189, https://vuldb.com/cve/CVE-2026-122189, https://vuldb.com/submit/1028313, https://vuldb.com/vuln/431163, https://github.com/OpenPPL/ppl.nn/issues/975, https://vuldb.com/vuln/431163/cti, https://github.com/user-attachments/files/33393000/poc.zip

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- bb84dc9952809b3a5a0036858a3d9f68af1c83d5
    Fixed -None

    Affected versions

    bb84dc9952809b3a5a0036858a3d9f68af1c83d5

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-122189 | CVE-DB