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6.9 Medium

tarfile.tarfilter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later…

CVE-2026-114583

tarfile.tarfilter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() with filter="tar" to write files outside the destination directory, subject to the permissions of the extracting process. This is the tarfile.tarfilter counterpart of CVE-2026-7774, which covered tarfile.datafilter.

Assessment

CVSS
6.9 (v4.0)
Severity
Medium
EPSS
0.23% chance of exploitation in the next 30 days
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
22 October 2026
Last updated
2 November 2026
Assigner
PSF

CVSS vectorCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

At the source

References

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