DEBIAN-CVE-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 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.
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/versions0.5.5-1Source reference:
/affected/0/versions0.5.6-1Source reference:
/affected/0/versions0.5.6-2Source reference:
/affected/0/versions0.6.0-1Source reference:
/affected/0/versions0.6.1-1Source reference:
/affected/0/versions0.6.2-1Source reference:
/affected/0/versions0.6.4-1Source 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/versions0.5.5-1Source reference:
/affected/1/versions0.5.6-1Source reference:
/affected/1/versions0.5.6-2Source 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