{"answers":{"affected":"2 open source packages ship an affected version, including onnx.","exploited":"There is no known exploitation of CVE-2026-115922 in the wild and no public exploit code.","fix":"Upgrade onnx to 1.22.0 or later.","what":"CVE-2026-115922 is a medium-severity vulnerability in onnx, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-115922 and fix it if it is affected.\n\nWhat it is: CVE-2026-115922 is a medium-severity vulnerability in onnx, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-115922 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- onnx (PyPI): affected all versions; fixed in 1.22.0\n- onnx (PyPI): affected all versions; fixed in 1.22.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-115922/ (Markdown: https://insights.sbomify.com/CVE-2026-115922/index.md)","id":"CVE-2026-115922","markdown":"https://insights.sbomify.com/CVE-2026-115922/index.md","name":"CVE-2026-115922","record":{"aliases":["DEBIAN-CVE-2026-115922","ECHO-4a0c-5767-8d02","GHSA-q69g-f4f5-v8m7","UBUNTU-CVE-2026-115922"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":6.2,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-789","name":"Memory Allocation with Excessive Size Value"}],"description":"Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to 1.22.0, _unpack_2bit() and _unpack_4bit() resize unpacked arrays according to attacker-controlled TensorProto.dims without verifying that raw_data or int32_data encodes the declared number of elements. Materializing an untrusted UINT2, INT2, UINT4, INT4, or FLOAT4E2M1 tensor through onnx.numpy_helper.to_array() or onnx.reference.ReferenceEvaluator can therefore expand a small packed payload into a disproportionately large allocation and exhaust memory. This issue is fixed in version 1.22.0.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ONNX: Denial of service via unchecked expansion of packed sub-byte tensors in ONNX Python APIs","id":"CVE-2026-115922","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":8,"next":{"headline":"Backstage catalog rules can be bypassed for URL locations using encoded path segments","id":"CVE-2026-115923"},"packages":[{"ecosystem":"PyPI","fixed":["1.22.0"],"introduced":["0"],"last_affected":[],"package":"onnx","purl":null,"source":"GHSA-q69g-f4f5-v8m7"},{"ecosystem":"PyPI","fixed":["1.22.0"],"introduced":["0"],"last_affected":[],"package":"onnx","purl":"pkg:pypi/onnx","source":"GHSA-q69g-f4f5-v8m7"}],"prev":{"headline":"ONNX: Null Pointer Dereference in ScanInferenceFunction Due to Missing Required Attribute","id":"CVE-2026-115921"},"products":["onnx"],"published":"2026-10-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-26","vendors":["onnx"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-115922/"}