CVE-2026-53655

node-tar (node-tar) before version 7.5.16 is vulnerable: it applies a PAX extended header size override to the next header entry, including intermediary L/K/x headers, which desynchronizes the stream cursor from other tar implementations. This yields a tar-parser interpretation differential (CWE-...

CVE-2026-53655

node-tar is a full-featured Tar for Node.js. Prior to 7.5.16, tar node-tar applies a PAX extended header's size= record and other PAX overrides to the next header entry of any type, including intermediary metadata headers such as a GNU long-name L or long-link K entry. Per POSIX pax, a PAX extend...

CVE-2026-53655 node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)

node-tar is a full-featured Tar for Node.js. Prior to 7.5.16, tar node-tar applies a PAX extended header's size= record and other PAX overrides to the next header entry of any type, including intermediary metadata headers such as a GNU long-name L or long-link K entry. Per POSIX pax, a PAX extend...

Interpretation Conflict

Overview tar is a full-featured Tar for Node.js. Affected versions of this package are vulnerable to Interpretation Conflict due to improper handling of PAX extended header size overrides in intermediary metadata headers. An attacker can cause inconsistent archive parsing results between differen...

node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)

Summary tar node-tar applies a PAX extended header's size= record and other PAX overrides to the next header entry of any type, including intermediary metadata headers such as a GNU long-name L or long-link K entry. Per POSIX pax, a PAX extended header x describes the next file entry, not the...

GHSA-VMF3-W455-68VH node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)

Summary tar node-tar applies a PAX extended header's size= record and other PAX overrides to the next header entry of any type, including intermediary metadata headers such as a GNU long-name L or long-link K entry. Per POSIX pax, a PAX extended header x describes the next file entry, not the...

NPM: node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)

NPM: node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential file smuggling vulnerability discovered by ? in WordPress Npm tar versions = 7.5.15...

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...

SUSE-SU-2026:22005-1 Security update for python-uv

This update for python-uv fixes the following issues: - CVE-2026-31812: quinn-proto: denial of service via crafted QUIC initial packet bsc1259624. - CVE-2026-32766: astral-tokio-tar: malformed PAX extensions can lead to archive misinterpretation bsc1259966...

OPENSUSE-SU-2026:20865-1 Security update for python-uv

This update for python-uv fixes the following issues: - CVE-2026-31812: quinn-proto: denial of service via crafted QUIC initial packet bsc1259624. - CVE-2026-32766: astral-tokio-tar: malformed PAX extensions can lead to archive misinterpretation bsc1259966...

astral-tokio-tar has a PAX Header Desynchronization issue

Impact Versions of astral-tokio-tar prior to 0.6.2 contain a PAX header interpretation bug that allows manipulated entries to be made selectively visible or invisible during extraction with astral-tokio-tar versus other tar implementations. An attacker could use this differential to smuggle...

GHSA-3CV2-H65G-FGMM astral-tokio-tar has a PAX Header Desynchronization issue

Impact Versions of astral-tokio-tar prior to 0.6.2 contain a PAX header interpretation bug that allows manipulated entries to be made selectively visible or invisible during extraction with astral-tokio-tar versus other tar implementations. An attacker could use this differential to smuggle...

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...

RUSTSEC-2026-0145 PAX Header Desynchronization in astral-tokio-tar

Versions of astral-tokio-tar prior to 0.6.2 contain a PAX header interpretation bug that allows manipulated entries to be made selectively visible or invisible during extraction with astral-tokio-tar versus other tar implementations. An attacker could use this differential to smuggle unexpected...

CLSA-2026-1778979189 Fix CVE(s): CVE-2024-6232, CVE-2024-7592, CVE-2024-9287

SECURITY UPDATE: ReDoS in tarfile PAX header parsing - debian/patches/CVE-2024-6232.patch: rewrite Lib/tarfile.py PAX-record parser to scan length-prefixed records via a bounded regex headerlengthprefixre plus direct slicing, eliminating quadratic backtracking in three pre-existing regexes. Adapt...

CLSA-2026-1778820779 tar: Fix of CVE-2023-39804

CVE-2023-39804: fix crash on PAX archive with malformed extended header attributes in locatehandler and xattrdecoder...

CLSA-2026-1778828497 tar: Fix of CVE-2023-39804

CVE-2023-39804: fix crash on PAX archive with malformed extended header attributes in locatehandler and xattrdecoder...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: golang (UTSA-2026-016814)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016814 advisory. 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 maliciously-crafted archive containing a large...

Unity Linux 20.1070a Security Update: osbuild-composer (UTSA-2026-016489)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016489 advisory. 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 maliciously-crafted archive containing a large...

GHSA-FP55-JW48-C537 astral-tokio-tar is Vulnerable to PAX Header Desynchronization

Impact Versions of astral-tokio-tar prior to 0.6.1 contain a PAX header interpretation bug that allows manipulated entries to be made selectively visible or invisible during extraction with astral-tokio-tar versus other tar implementations. An attacker could use this differential to smuggle...