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PatchSiren cyber security CVE debrief

CVE-2026-11329 onnx CVE debrief

A vulnerability has been found in onnx onnx-mlir up to 0.5.0.0. Affected by this issue is the function generate_hash_key of the file src/Runtime/python/torch_onnxmlir/src/torch_onnxmlir/backend.py of the component Placeholder Node Cache Handler. Such manipulation leads to use of weak hash. An attack has to be approached locally. A high complexity level is associated with this attack. The exploitation is known to be difficult.

Vendor
onnx
Product
onnx-mlir
CVSS
LOW 2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-05
Advisory published
2026-06-05
Advisory updated
2026-06-05

Who should care

Users of onnx onnx-mlir up to 0.5.0.0

Technical summary

The vulnerability is caused by the use of a weak hash in the generate_hash_key function of the Placeholder Node Cache Handler. This can be exploited locally, but the complexity of the attack is high and the exploitation is difficult.

Defensive priority

LOW

Recommended defensive actions

  • Apply the patch 72c5187ff6d13c2c2b3d3789b8f5faf99f08a5b4 to resolve this issue.

Evidence notes

The vulnerability has been rated as problematic with a CVSS score of 2 and a CVSS severity of LOW.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11329 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11329

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11329 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11329

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.