CVE-2026-29786

CVE-2026-29786 Research: Joshua van Rijswijk Description This repository contains a Proof of Concept PoC for CVE-2026-29786 , a vulnerability in the tar npm package that allows a crafted archive to create a hardlink pointing outside the intended extraction directory. The issue occurs when a tar...

Oracle Linux 10 : ELSA-2026-61586-0: / tar (ELSA-2026-615860)

The remote Oracle Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-615860 advisory. - Backport upstream patches for CVE-2026-18477, fixes a bug where incremental restore with cyclic renames between backups may create a temporary...

Oracle Linux 9 : ELSA-2026-61581-0: / tar (ELSA-2026-615810)

The remote Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-615810 advisory. - Backport upstream patches for CVE-2026-18477, fixes a bug where incremental restore with cyclic renames between backups may create a temporary...

tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite

A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary...

tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite

A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary...

Astra Linux – Vulnerability in node-tar

node-tar is a fully featured Tar library for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink within the extraction directory that points to a file outside of the extraction root. This allows arbitrary file reading and writing b...

AZL-94599 CVE-2026-18508 affecting package tar 1.35-2

A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary...

CVE-2026-18508

A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary...

CVE-2026-50163 oras-go: Hardlink entry with relative Linkname escapes extract dir via process CWD resolution in `oras-go` tar extraction

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link"victim.secret", "/payload.tar.gz/evilcwdlink" to resolve header.Linkname...

PT-2026-56053

Name of the Vulnerable Software and Affected Versions @xhmikosr/decompress versions prior to 10.2.1 @xhmikosr/decompress versions prior to 11.1.3 decompress versions prior to 4.3.0 Description When extracting archives to a directory, a crafted archive can read or write files outside that director...

Updated perl-Archive-Tar package fixes security vulnerabilities

The updated package fixes security vulnerabilities: Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory. CVE-2026-42496 Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the...

DEBIAN-CVE-2026-29786

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x extraction. Th...

UBUNTU-CVE-2026-29786

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x extraction. Th...

Exploit for CVE-2026-29786

CVE-2026-29786 Research: Joshua van Rijswijkhttps://gi...

SUSE CVE-2026-26960

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting use...

DEBIAN-CVE-2026-26960

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting use...

CVE-2026-26960

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting use...

CVE-2026-26960 node-tar has Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in Extraction

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting use...

CVE-2026-26960

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting use...

CVE-2026-26960 node-tar has Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in Extraction

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting use...