Vulnerability · Published Jun 16, 2025 · Assigned by GitHub_M
CVE-2025-32798Conda-build Allows Arbitrary Code Execution via Malicious Recipe Selectors
High 8.2
In plain English
A high-severity code injection in conda-build from conda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).
Official description
Conda-build contains commands and tools to build conda packages. Prior to version 25.4.0, the conda-build recipe processing logic has been found to be vulnerable to arbitrary code execution due to unsafe evaluation of recipe selectors. Currently, conda-build uses the eval function to process embedded selectors in meta.yaml files. This approach evaluates user-defined expressions without proper sanitization, which allows arbitrary code to be executed during the build process. As a result, the integrity of the build environment is compromised, and unauthorized commands or file operations may be performed. The vulnerability stems from the inherent risk of using eval() on untrusted input in a context intended to control dynamic build configurations. By directly interpreting selector expressions, conda-build creates a potential execution pathway for malicious code, violating security assumptions. This issue has been patched in version 25.4.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| conda | conda-build | < 25.4.0 |
Weakness: CWE-94 · Vector: 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:P
References
- https://github.com/conda/conda-build/security/advisories/GHSA-6cc8-c3c9-3rgr x_refsource_CONFIRM
- https://github.com/conda/conda-build/commit/3d87213b840774a24ab1733664d2b36664233754 x_refsource_MISC
- https://github.com/conda/conda-build/blob/834448b995eee02cf1c2e7ca97bcfa9affc77ee5/conda_build/metadata.py x_refsource_MISC