CVE-2025-32798
Conda-build Arbitrary Code Execution Vulnerability
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.
INFO
Published Date :
June 16, 2025, 8:15 p.m.
Last Modified :
July 2, 2025, 6:21 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update conda-build to version 25.4.0 or later.
- Review all conda-build recipes for unsafe selectors.
- Sanitize user-provided input for recipe selectors.
- Avoid using eval on untrusted input.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-32798.
| URL | Resource |
|---|---|
| https://github.com/conda/conda-build/blob/834448b995eee02cf1c2e7ca97bcfa9affc77ee5/conda_build/metadata.py | Product |
| https://github.com/conda/conda-build/commit/3d87213b840774a24ab1733664d2b36664233754 | Patch |
| https://github.com/conda/conda-build/security/advisories/GHSA-6cc8-c3c9-3rgr | Exploit Third Party Advisory |
| https://github.com/conda/conda-build/security/advisories/GHSA-6cc8-c3c9-3rgr | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-32798 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-32798
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-32798 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-32798 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 02, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:anaconda:conda-build:*:*:*:*:*:*:*:* versions up to (excluding) 25.4.0 Added Reference Type GitHub, Inc.: https://github.com/conda/conda-build/blob/834448b995eee02cf1c2e7ca97bcfa9affc77ee5/conda_build/metadata.py Types: Product Added Reference Type GitHub, Inc.: https://github.com/conda/conda-build/commit/3d87213b840774a24ab1733664d2b36664233754 Types: Patch Added Reference Type CISA-ADP: https://github.com/conda/conda-build/security/advisories/GHSA-6cc8-c3c9-3rgr Types: Exploit, Third Party Advisory Added Reference Type GitHub, Inc.: https://github.com/conda/conda-build/security/advisories/GHSA-6cc8-c3c9-3rgr Types: Exploit, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2025
Action Type Old Value New Value Added Reference https://github.com/conda/conda-build/security/advisories/GHSA-6cc8-c3c9-3rgr -
New CVE Received by [email protected]
Jun. 16, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-94 Added Reference https://github.com/conda/conda-build/blob/834448b995eee02cf1c2e7ca97bcfa9affc77ee5/conda_build/metadata.py Added Reference https://github.com/conda/conda-build/commit/3d87213b840774a24ab1733664d2b36664233754 Added Reference https://github.com/conda/conda-build/security/advisories/GHSA-6cc8-c3c9-3rgr