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.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/conda/conda-build/security/advisories/GHSA-83gh-p93g-cwgx
Patch x_refsource_misc
https://github.com/conda/conda-build/commit/f5a6aeef0d5d6940b8c2a88796910dc7476a62bb
Exploit, Technical Description x_refsource_misc
https://drive.google.com/file/d/18qe97zxcpTn2l84187A9meGCi2Wg-n_Y/view
Scores
CVSS v3
9.8
EPSS
0.0054
EPSS Percentile
41.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-1357
Status
published
Products (1)
anaconda/conda-build
< 25.3.0
Published
Jun 16, 2025
Tracked Since
Feb 18, 2026