CVE-2025-32800

Description

Conda-build contains commands and tools to build conda packages. Prior to version 25.3.0, the 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. This issue has been fixed in version 25.3.0. A workaround involves using --no-deps for pip install-ing the project from the repository.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-1357 CWE-1357

Affected Products

Vendor	Product	Versions
anaconda	conda-build	< 25.3.0

References

Advisories & Patches

https://github.com/conda/conda-build/commit/f5a6aeef0d5d6940b8c2a88796910dc7476a62bb https://github.com/conda/conda-build/security/advisories/GHSA-83gh-p93g-cwgx

Exploits

https://drive.google.com/file/d/18qe97zxcpTn2l84187A9meGCi2Wg-n_Y/view

Frequently Asked Questions

What is CVE-2025-32800? +

Conda-build contains commands and tools to build conda packages. Prior to version 25.3.0, the 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. This issue has been fixed in version 25.3.0. A workaround involves using --no-deps for pip install-ing the project from the repository. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-32800? +

CVE-2025-32800 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-32800? +

CVE-2025-32800 affects products from anaconda, specifically: conda-build. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-32800? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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