CVE-2026-29786

CVE-2026-29786 Investigación: Joshua van Rijswijk Descripción Este repositorio contiene una Prueba de Concepto PoC para CVE-2026-29786 , una vulnerabilidad en el paquete npm tar que permite que un archivo manipulado cree un enlace duro hardlink que apunta fuera del directorio de extracción...

AlmaLinux 9.6 [TuxCare] Security Update: tar (ALMALINUX9.6:CLSA-2026:1789131413)

The AlmaLinux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1789131413 advisory. - A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designate...

OESA-2026-3911 tar security update

GNU Tar provides the ability to create tar archives, as well as various other kinds of manipulation. For example, you can use Tar on previously created archives to extract files, to store additional files, or to update or list files which were already stored. Security Fixes: A flaw was found in G...

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...

Security Bulletin: Multiple Vulnerabilities in IBM Operator for PostgreSQL

Summary Multiple vulnerabilities were addressed in IBM Operator for PostgreSQL version v28.4.4. Vulnerability Details CVEID:CVE-2026-11822 DESCRIPTION: SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process...

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...

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...

AZL-101772 CVE-2026-29786 affecting package python-tensorboard 2.16.2-6

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...

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...