Bug 2556215 (CVE-2026-112914) - CVE-2026-112914 filelock: filelock: Unauthorized file exposure via symbolic link manipulation in SoftFileLock
Summary: CVE-2026-112914 filelock: filelock: Unauthorized file exposure via symbolic l...
Keywords:
Status: NEW
Alias: CVE-2026-112914
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-20 14:47 UTC by OSIDB Bzimport
Modified: 2026-11-03 08:31 UTC (History)
89 users (show)

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Description OSIDB Bzimport 2026-10-20 14:47:33 UTC 
filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftFileLock can restore a stale marker by name after moving it aside, allowing another local user with rename access in a non-sticky lock directory to swap in a symbolic link and, on a runtime that follows the link and a same-filesystem target, make the lock user hard-link one of its files into the lock directory. This issue is fixed in version 4.2.1.
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