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Supply chain attack vector due to `pyproject.toml` referring to dependencies not present in PyPI

Low
jaimergp published GHSA-83gh-p93g-cwgx Jun 14, 2025

Package

conda-build (conda)

Affected versions

<25.3.0

Patched versions

25.3.0

Description

Impact

What kind of vulnerability is it? Who is impacted?

This project's pyproject.toml lists conda-index as a Python dependency. This package is not published in PyPI. An attacker could claim this namespace and upload arbitrary (malicious) code to the package, and then exploit pip install commands by injecting the malicious dependency in the solve.

Patches

Has the problem been patched? What versions should users upgrade to?

Yes. As of 25.3.0, pyproject.toml does not list conda-index. Also the name conda-index was claimed on PyPI.

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

Using --no-deps for pip install-ing the project from the repository.

References

Are there any links users can visit to find out more?

Severity

Low

CVE ID

CVE-2025-32800

Weaknesses

No CWEs

Credits