CVE-2026-7774 – tarfile.data_filter path traversal bypass allows writing outside the extraction directory

CVE ID :CVE-2026-7774

Published : June 4, 2026, 4:16 p.m. | 16 minutes ago

Description :tarfile.data_filter 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() to write files outside the destination directory, subject to the permissions of the extracting process.

Severity: 6.9 | MEDIUM

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