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Not in CISA KEV
LOW severity

Path Traversal in openapi-python-clientGHSA-7wgr-7666-7pwj

LOWFix: triaxtec/openapi-python-client@3e7dfae

GHSA-7wgr-7666-7pwj is a low-severity (CVSS 3) Path Traversal vulnerability in openapi-python-client. A fix is available for openapi-python-client — see the affected versions and patch details below.

Also known asCVE-2020-15141PYSEC-2020-70
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 17, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs66th percentile — riskier than 66% of all scored CVEsHighest risk
0.00%0.55%1.09%1.64%0.4%1.1%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-7wgr-7666-7pwj by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🐍openapi-python-client

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Impact

Path traversal vulnerability. If a user generated a client using a maliciously crafted OpenAPI document, it is possible for generated files to be placed in arbitrary locations on disk.

Giving this a CVSS score of 3.0 (Low) with CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N/E:P/RL:U/RC:C

Patches

A fix is being worked on for version 0.5.3

Workarounds

Inspect OpenAPI documents before generating clients for them.

For more information

If you have any questions or comments about this advisory:

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIopenapi-python-clientall versions0.5.3pip install --upgrade 'openapi-python-client==0.5.3'

Affected Products

1 product · 1 configurations
Application
openapi-python-clientopenapi-python-client_project
< 0.5.3
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openapi-python-client, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update openapi-python-client to 0.5.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7wgr-7666-7pwj is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

### Impact Path traversal vulnerability. If a user generated a client using a maliciously crafted OpenAPI document, it is possible for generated files to be placed in arbitrary locations on disk. Giving this a CVSS score of 3.0 (Low) with CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N/E:P/RL:U/RC:C ### Patches A fix is being worked on for version 0.5.3 ### Workarounds Inspect OpenAPI documents before generating clients for them. ### For more information If you have any questions or comments about this advisory: * Open an issue in [openapi-python-client](https://github.com/triaxtec/openapi-py
O3 Security · Impact-Aware SCA

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Path Traversal in openapi-python-client (Low 3)