{"id":"AZL-103394","summary":"CVE-2026-53940 affecting package conda 24.3.0-4","details":"Conda is a system-level binary package and environment manager that runs on major operating systems and platforms. Prior to 26.5.2, parse_entry_point_def in conda/common/path/python.py accepted an unvalidated entry-point command from a noarch:python package's info/link.json metadata. CreatePythonEntryPointAction in conda/core/path_actions.py interpolated that command into target_short_path, and PrefixPathAction.target_full_path joined it to the installation prefix without verifying that the result remained under the intended bin or Scripts directory. create_python_entry_point in conda/gateways/disk/create.py then wrote an executable wrapper to the resulting path. A malicious package could use path separators, traversal segments, or an absolute command path to write outside the prefix or overwrite another in-prefix entry point during default install and environment transactions. Out-of-prefix writes require the target parent directory to exist, while an overwritten entry point can execute attacker-controlled Python when later invoked with the installing user's privileges. This issue is fixed in version 26.5.2.","modified":"2026-09-22T14:17:43.684610203Z","published":"2026-09-21T16:17:09Z","upstream":["CVE-2026-53940"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53940"}],"affected":[{"package":{"name":"conda","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/conda"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"24.3.0-4"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-103394.json"}}],"schema_version":"1.9.0"}