Link Following Affecting rust-tar package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.46% (38th percentile)

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  • Snyk IDSNYK-DEBIAN11-RUSTTAR-18718014
  • published12 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

CVE-2026-70622  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 rust-tar.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-tar package and not the rust-tar package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1