CVE-2025-32800: high-severity vulnerability in conda-build
Conda-build vulnerable to supply chain attack vector due to pyproject.toml referring to dependencies not present in PyPI
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.6%
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:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
Affected products
conda · conda-buildRelated CVEs — conda-build
In the same product, most dangerous first.
CVE-2025-32799MEDIUMConda-build Vulnerable to Path Traversal via Malicious Tar FileEPSS 1.3%CVE-2025-32798HIGHConda-build Allows Arbitrary Code Execution via Malicious Recipe SelectorsEPSS 0.8%CVE-2025-32797MEDIUMConda-build Insecure Build Script Permissions Enabling Arbitrary Code ExecutionEPSS 0.2%