CVE-2025-32798
CWE-94Published: June 16, 2025· Updated: Jun 17, 2026
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.
Risk Analysis
Conda-build versions prior to 25.4.0 are vulnerable to arbitrary code execution due to the unsafe use of eval() on recipe selectors in meta.yaml files. This allows attackers to compromise the build environment, resulting in a 9.8 CVSS score.
No public exploit is known, and it is not in the KEV catalog. The vulnerability is remotely exploitable.
Upgrade to conda-build version 25.4.0 to resolve the unsafe evaluation of recipe selectors.
Technical Analysis
CVE-2025-32798 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-94)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-32798 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts