CVE-2026-114583 — tar filter allows writing outside destination via empty-named symlink
tarfile.tar_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended ex…
Published: 2026-10-22 · CVSS: 6.9 · CVSS 4.0
tarfile.tar_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() with filter="tar" to write files outside the destination directory, subject to the permissions of the extracting process. This is the tarfile.tar_filter counterpart of CVE-2026-7774, which covered tarfile.data_filter.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7