CVE-2026-32766: astral-tokio-tar is a tar archive reading/writing library for async Rust

Q: How do I fix CVE-2026-32766?

astral-tokio-tar: upgrade to 0.6.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-32766 being exploited?

CVE-2026-32766 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-32766 affect?

CVE-2026-32766 affects astral-tokio-tar. Severity is medium (CVSS 5.3). 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 e

Q: How urgent is CVE-2026-32766?

Priority 28/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2026-32766 is a medium-severity flaw (CVSS 5.3) affecting astral-tokio-tar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 pra

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-436
Published	2026-03-20
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: astral

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-20 00:16 UTCPublished CVE record published
2026-06-17 10:36 UTCUpdated Record last modified

astral astral-tokio-tar UPGRADE

Affected: < 0.6.0

Fixed in: 0.6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy astral-tokio-tar || rpm -q astral-tokio-tar || astral-tokio-tar --version

2. UPGRADE to 0.6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade astral-tokio-tar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade astral-tokio-tar

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-32766?

astral-tokio-tar: upgrade to 0.6.0. Exact commands for each OS are on this page.

Is CVE-2026-32766 being exploited?

CVE-2026-32766 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-32766 affect?

CVE-2026-32766 affects astral-tokio-tar. Severity is medium (CVSS 5.3). 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 e

How urgent is CVE-2026-32766?

Priority 28/100. Remotely exploitable, no login, no user action

References

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