This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-70622 →

UBUNTU-CVE-2026-70622

tar-rs versions 0.4.11 through 0.4.46 contain a symlink escape vulnerability in the Builder::append_dir_all() function that allows attackers to read f...

Original description

The description as published by the source.

tar-rs versions 0.4.11 through 0.4.46 contain a symlink escape vulnerability in the Builder::append_dir_all() function that allows attackers to read files outside the intended source root directory by planting symlinks in an attacker-controlled directory. When a privileged process archives an untrusted directory, the function follows symlinks without verifying that resolved targets remain within the source root, causing out-of-bounds files to be included in the archive as regular files and disclosed to the attacker.

Source: OSV.dev (Open Source Vulnerabilities) OSV