CVE-2026-33056: RUSTSEC-2026-0067 - `unpack_in` can chmod arbitrary directories by following symlinks

CVE-2026-33056 · Severity: medium · CVSS 4 · Published 2026-03-19

`unpack_in` can chmod arbitrary directories by following symlinks

Technologies: tar (crates.io). Vendors: crates.io.

Quick answers

Is CVE-2026-33056 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-33056 being exploited in the wild.
How severe is CVE-2026-33056?
Medium severity, with a CVSS score of 4, published 19 March 2026.
Which products and versions are affected?
tar (crates.io) SEMVER:introduced=0,fixed=0.4.45, SEMVER:introduced=0.0.0-0,fixed=0.4.45.
Is there a fix for CVE-2026-33056?
Yes. tar (crates.io): upgrade to 0.4.45 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-33056?
Check whether you run tar (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • tar (crates.io): upgrade to 0.4.45 or later
    cargo update -p tar

Affected products

  • tar (crates.io) SEMVER:introduced=0,fixed=0.4.45, SEMVER:introduced=0.0.0-0,fixed=0.4.45

Identifiers

  • CVE-2026-33056
  • GHSA-j4xf-2g29-59ph
  • RUSTSEC-2026-0067

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