Skip to content
Heist/ feed
UnratedFix available

DEBIAN-CVE-2026-32766

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-32766

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-32766

rust-astral-tokio-tar

Source reference: /affected/0/package/name

Affected versions
0.5.2-2

Source reference: /affected/0/versions

0.5.5-1

Source reference: /affected/0/versions

0.5.6-1

Source reference: /affected/0/versions

0.5.6-2

Source reference: /affected/0/versions

0.6.0-1

Source reference: /affected/0/versions

0.6.1-1

Source reference: /affected/0/versions

0.6.2-1

Source reference: /affected/0/versions

0.6.4-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

rust-astral-tokio-tar

Source reference: /affected/1/package/name

Affected versions
0.5.2-2

Source reference: /affected/1/versions

0.5.5-1

Source reference: /affected/1/versions

0.5.6-1

Source reference: /affected/1/versions

0.5.6-2

Source reference: /affected/1/versions

Fixed versions
0.6.0-1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "rust-astral-tokio-tar",
      "purl": "pkg:deb/debian/rust-astral-tokio-tar?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.5.2-2",
      "0.5.5-1",
      "0.5.6-1",
      "0.5.6-2",
      "0.6.0-1",
      "0.6.1-1",
      "0.6.2-1",
      "0.6.4-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-32766.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.6.0-1"
          }
        ]
      }
    ],
    "package": {
      "name": "rust-astral-tokio-tar",
      "purl": "pkg:deb/debian/rust-astral-tokio-tar?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.5.2-2",
      "0.5.5-1",
      "0.5.6-1",
      "0.5.6-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-32766.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56361 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement