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...

CVE-2026-33055: Access of Resource Using Incompatible Type

tar-rs is a tar archive reading/writing library for Rust. Versions 0.4.44 and below have conditional logic that skips the PAX size header in cases where the base header size is nonzero. As part of CVE-2025-62518, the astral-tokio-tar project was changed to correctly honor PAX size headers in the...

astral-tokio-tar 安全漏洞

astral-tokio-tar is an open-source Rust library developed by Astral. Versions of astral-tokio-tar 0.5.6 and earlier contain security vulnerabilities. These vulnerabilities stem from a silent skipping of format-errors PAX extensions during the parsing of tar archives. Such behavior could potential...

CVE-2026-32766: Interpretation Conflict

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...

tar-rs incorrectly ignores PAX size headers if header size is nonzero

Versions 0.4.44 and below of tar-rs have conditional logic that skips the PAX size header in cases where the base header size is nonzero. As part of CVE-2025-62518astral-cve, the astral-tokio-tar project was changed to correctly honor PAX size headers in the case where it was different from the...

RUSTSEC-2026-0068 tar-rs incorrectly ignores PAX size headers if header size is nonzero

Versions 0.4.44 and below of tar-rs have conditional logic that skips the PAX size header in cases where the base header size is nonzero. As part of CVE-2025-62518astral-cve, the astral-tokio-tar project was changed to correctly honor PAX size headers in the case where it was different from the...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

PT-2026-26570

Name of the Vulnerable Software and Affected Versions tar-rs versions 0.4.44 and below Description tar-rs, a Rust library for reading and writing tar archives, contains a flaw in its handling of PAX size headers. Specifically, versions 0.4.44 and below have conditional logic that skips the PAX si...

astral-tokio-tar insufficiently validates PAX extensions during extraction

Impact In versions 0.5.6 and earlier of astral-tokio-tar, 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 having...

RUSTSEC-2026-0066 Insufficient validation of PAX extensions during extraction

In versions 0.5.6 and earlier of astral-tokio-tar, 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 malform...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

PT-2026-25983

Name of the Vulnerable Software and Affected Versions astral-tokio-tar versions 0.5.6 and earlier Description 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...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

golang: archive/tar: Unbounded allocation when parsing GNU sparse map

A flaw was found in the archive/tar package in the Go standard library. tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive with a pax header indicating a big number of sparse regions can cause a Go...

CLSA-2025-1766232351 libarchive: Fix of 3 CVEs

CVE-2025-5916: fix signed integer overflow in WARC format reader - CVE-2025-5917: fix buffer overflow in buildustarentry for PAX format - CVE-2025-5918: prevent skipping past EOF in archive file reading...