Conda Forge Webservices

conda-forge-webservices is the web app deployed to run conda-forge admin commands and linting. Prior to version 2025.3.24, the conda_forge_webservice Docker container executes commands without specifying a user. By default, Docker containers run as the root user, which increases the risk of privilege escalation and host compromise if a vulnerability is exploited. This issue has been patched in version 2025.3.24.

Published: 2025-06-17T14:02:37.266Z
Updated: 2025-06-17T18:15:47.781Z

conda-forge-webservices is the web app deployed to run conda-forge admin commands and linting. In versions prior to 2025.4.10, a race condition vulnerability has been identified in the conda-forge-webservices component used within the shared build infrastructure. This vulnerability, categorized as a Time-of-Check to Time-of-Use (TOCTOU) issue, can be exploited to introduce unauthorized modifications to build artifacts stored in the cf-staging Anaconda channel. Exploitation may result in the unauthorized publication of malicious artifacts to the production conda-forge channel. The core vulnerability results from the absence of atomicity between the hash validation and the artifact copy operation. This gap allows an attacker, with access to the cf-staging token, to overwrite the validated artifact with a malicious version immediately after hash verification, but before the copy action is executed. As the cf-staging channel permits artifact overwrites, such an operation can be carried out using the anaconda upload --force command. This vulnerability is fixed in 2025.4.10.

Published: 2025-04-15T21:56:27.639Z
Updated: 2025-04-17T14:25:10.981Z