vulnerability

Arch Linux: Directory traversal (CVE-2025-22873)

Severity
2
CVSS
(AV:L/AC:L/Au:S/C:P/I:N/A:N)
Published
Feb 4, 2026
Added
Feb 6, 2026
Modified
Feb 9, 2026

Description

It was possible to improperly access the parent directory of a restricted filesystem root created with os.DirFS. Calling Open("../") on such a filesystem could open the parent directory itself, violating expected directory confinement. This escape did not allow access to ancestor directories beyond the parent, nor to files within the parent directory.

This behavior has been corrected to return an error for such paths.

Solution

arch-linux-upgrade-latest
Title
NEW

Explore Exposure Command

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