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...

Zimbra Collaboration - Unrestricted File Upload

An issue was discovered in Zimbra Collaboration ZCS 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole extraction to /opt/zimbra/jetty/webapps/zimbra/public that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also,...

Linux Distros Unpatched Vulnerability : CVE-2026-53655

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 head...

DEBIAN-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 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...

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 (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-...

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...

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...

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...

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...

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...

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...

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...