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Vulnerabilities

Vulnerability · CVE-2026-32766

astral-tokio-tar is a tar archive reading/writing library for async Rust.

Published Mar 20, 2026 · catalog updated Jun 17, 2026 · astral-tokio-tar is a tar

Check if you run it

No confirmed exploitation is on record for CVE-2026-32766. EPSS is 0.31%. Act only if a listed version of astral-tokio-tar is a tar is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (astral-tokio-tar is a tar).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low1.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.31%
Remediation
Version ranges on file
Affected products
cpe astral/astral-tokio-tar · stated astral-tokio-tar

astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.6 and earlier, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by silently skipping a malformed GNU “long link” extension so that a subsequent parser would misinterpret the extension. In practice, exploiting this behavior in astral-tokio-tar requires a secondary misbehaving tar parser, i.e. one that insufficiently validates malformed PAX extensions and interprets them rather than skipping or erroring on them. This vulnerability is considered low-severity as it requires a separate vulnerability against any unrelated tar parser. This issue has been fixed in version 0.6.0.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe astral/astral-tokio-tarversion unspecified
  • stated astral-tokio-tar<= 0.5.6

How to fix CVE-2026-32766

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-32766. EPSS is 0.31%. Act only if a listed version of astral-tokio-tar is a tar is installed.

Which versions are affected?

Compare what you have installed with <= 0.5.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-436. EPSS 0.31%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 20, 2026 · NIST NVD

    Detected

    astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.6 and earlier, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by silently skipping a malformed GNU “long link” extension so that a subseque

  2. Jun 17, 2026 · NIST NVD

    Updated

    astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.6 and earlier, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by silently skipping a malformed GNU “long link” extension so that a subseque

Sources

  • CVE.orgVulnerability recordCVE-2026-32766

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-32766

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-32766

    astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.6 and earlier, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building bl

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.