Bug 2397901 (CVE-2025-59343) - CVE-2025-59343 tar-fs: tar-fs symlink validation bypass
Summary: CVE-2025-59343 tar-fs: tar-fs symlink validation bypass
Keywords:
Status: NEW
Alias: CVE-2025-59343
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2397967 2397968 2397969 2397970 2397972 2397971 2397973
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-24 18:01 UTC by OSIDB Bzimport
Modified: 2025-10-06 13:05 UTC (History)
80 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:17376 0 None None None 2025-10-06 13:05:34 UTC

Description OSIDB Bzimport 2025-09-24 18:01:50 UTC 
tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the ignore option on non files/directories.
Comment 3 errata-xmlrpc 2025-10-06 13:05:28 UTC 
This issue has been addressed in the following products:

  Cryostat 4 on RHEL 9

Via RHSA-2025:17376 https://access.redhat.com/errata/RHSA-2025:17376
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