CVE-2022-25882: Onnx Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-ffxj-547x-5j7c
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2022-25882 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Onnx libraries in the PyPI ecosystem. The issue involves directory traversal in onnx. Remediation is available by upgrading affected packages to version 1.13.0.

CVE-2022-25882 at a Glance

CVE Identifier CVE-2022-25882
GHSA Identifier GHSA-ffxj-547x-5j7c
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Onnx
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2022-25882

To remediate this vulnerability, upgrade all affected Onnx dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

onnx fixed: 1.13.0 
pip install onnx>=1.13.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show onnx

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-25882, inspect your installed packages using pip:

pip show onnx

Analyze the terminal output to locate any version of Onnx in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.13.0), your application is affected.

Note: The pip show onnx command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Onnx, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Versions of the package onnx before 1.13.0 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, for example "../../../etc/passwd"

CVE-2022-25882 Affected Onnx Versions

1 component(s)
Fixed Versions:
1.13.0
Product / Package Ecosystem Affected Versions Fixed Version
onnx
pypi/onnx
PyPI
< 1.13.0
1.13.0

References

NVD — CVE-2022-25882 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-25882
Onnx Source Repository REPOSITORY
https://github.com/onnx/onnx/issues/3991
Onnx Source Repository REPOSITORY
https://github.com/onnx/onnx/pull/4400
Security Fix Commit FIX COMMIT
https://github.com/onnx/onnx/commit/f369b0e859024095d721f1d1612da5a8fa38988d
Onnx Source Repository REPOSITORY
https://gist.github.com/jnovikov/02a9aff9bf2188033e77bd91ff062856
Onnx Source Repository REPOSITORY
https://github.com/onnx/onnx
Onnx Source Repository REPOSITORY
https://github.com/onnx/onnx/blob/96516aecd4c110b0ac57eba08ac236ebf7205728/onnx/checker.cc%23L129
Onnx Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/onnx/PYSEC-2023-38.yaml
Onnx Security Information SECURITY
https://security.snyk.io/vuln/SNYK-PYTHON-ONNX-2395479

Frequently Asked Questions

What is CVE-2022-25882?
CVE-2022-25882 is a security vulnerability in Onnx involving Directory Traversal in onnx under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Onnx versions are affected?
Affected versions include releases prior to 1.13.0 across affected packages: onnx.
What version fixes CVE-2022-25882?
Upgrading to 1.13.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is onnx affected?
Yes, onnx is affected in releases prior to 1.13.0. Upgrade your dependency to 1.13.0 or later.
What is the CVSS score of CVE-2022-25882?
CVE-2022-25882 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2022-25882?
CVE-2022-25882 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check PyPI dependencies for CVE-2022-25882?
Run the dependency tree command: 'pip show onnx'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-ffxj-547x-5j7c",
  "modified" : "2025-04-01T21:50:44Z",
  "published" : "2023-01-26T21:30:25Z",
  "aliases" : [ "CVE-2022-25882" ],
  "summary" : "Directory Traversal in onnx",
  "details" : "Versions of the package onnx before 1.13.0 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, for example \"../../../etc/passwd\"",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "onnx"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.13.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-25882"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/onnx/onnx/issues/3991"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/onnx/onnx/pull/4400"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/onnx/onnx/commit/f369b0e859024095d721f1d1612da5a8fa38988d"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/jnovikov/02a9aff9bf2188033e77bd91ff062856"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/onnx/onnx"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/onnx/onnx/blob/96516aecd4c110b0ac57eba08ac236ebf7205728/onnx/checker.cc%23L129"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/onnx/PYSEC-2023-38.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-PYTHON-ONNX-2395479"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-27T01:04:53Z",
    "nvd_published_at" : "2023-01-26T21:15:00Z"
  }
}