CPython race condition may delete files outside a temporary directory
A notice published on September 29, 2026 reports a race condition during tempfile.TemporaryDirectory cleanup that may delete files outside the temporary directory. The available text provides no technical detail beyond message headers.
A CPython security notice published on September 29, 2026 says a race condition during tempfile.TemporaryDirectory cleanup may allow files outside the temporary directory to be deleted. The supplied material contains the headline and message headers, but no technical explanation, affected versions, fix, or mitigation steps.
To verify the scope and details, consult the original message in the oss-sec feed archive and look for an official CPython project notice. Confirm affected versions and guidance before changing systems; the material available here does not establish those points.