by Kastro
Paper/Archive/CVE-2025-32800

CVE-2025-32800

conda conda-build — Conda-build vulnerable to supply chain attack vector due to pyproject.toml referring to dependencies not present in PyPI

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 51.0.510 × 2010.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
conda-build< 25.3.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)7.2CVSS: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
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/conda/conda-build/security/advisories/GHSA-83gh-p93g-cwgxrefgithub.com/conda/conda-build/commit/f5a6aeef0d5d6940b8c2a88796910dc7476a62bbrefdrive.google.com/file/d/18qe97zxcpTn2l84187A9meGCi2Wg-n_Y/view