Source: pypy3 X-Debbugs-CC: [email protected] Severity: important Tags: security
Hi, The following vulnerability was published for pypy3. CVE-2026-12345[0]: | The cleanup of tempfile.TemporaryDirectory is vulnerable to a race | condition. An attacker who can modify the tree during cleanup can | replace a directory with a symbolic link, causing files outside of | the temporary directory to be deleted or have their permissions and | file flags reset, with the privileges of the process performing the | cleanup. Note that platforms where | shutil.rmtree.avoids_symlink_attacks is false, remain affected, and | file flags may still be reset outside of the tree on all platforms. Fix in cpython: https://github.com/python/cpython/issues/157579 https://github.com/python/cpython/pull/157580 If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-12345 https://www.cve.org/CVERecord?id=CVE-2026-12345 Please adjust the affected versions in the BTS as needed.
