python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory

A flaw was found in the tarfile.extractall function within Python. A remote attacker could exploit this vulnerability by providing a specially crafted archive. This archive could bypass security filters by using a hardlink that references a symlink, allowing the symlink to be recreated outside th...

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...

python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory

A flaw was found in the tarfile.extractall function within Python. A remote attacker could exploit this vulnerability by providing a specially crafted archive. This archive could bypass security filters by using a hardlink that references a symlink, allowing the symlink to be recreated outside th...

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...

python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory

A flaw was found in the tarfile.extractall function within Python. A remote attacker could exploit this vulnerability by providing a specially crafted archive. This archive could bypass security filters by using a hardlink that references a symlink, allowing the symlink to be recreated outside th...

GHSA-F794-5JV7-7672 NLTK: Downloader.download follows hardlinks and overwrites outside-root files

Summary NLTK's downloader now blocks symlink escapes during ZIP extraction, but it still treats pre-existing hardlinks inside the install tree as ordinary in-root files. A normal package install can therefore overwrite an outside-root inode through that hardlink. Details - Vulnerability type:...

External Control of File Name or Path

Overview nltk is a Natural Language Toolkit NLTK is a Python package for natural language processing. Affected versions of this package are vulnerable to External Control of File Name or Path via the Downloader.download and Downloader.incrdownload file-write path in nltk/downloader.py. An attacke...

EUVD-2026-67077

NLTK: Downloader.download follows hardlinks and overwrites outside-root files...

NLTK: Downloader.download follows hardlinks and overwrites outside-root files

Summary NLTK's downloader now blocks symlink escapes during ZIP extraction, but it still treats pre-existing hardlinks inside the install tree as ordinary in-root files. A normal package install can therefore overwrite an outside-root inode through that hardlink. Details - Vulnerability type:...

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...

AlmaLinux 10 : tar (ALSA-2026:61586)

The remote AlmaLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:61586 advisory. tar: tar: Hidden file injection via crafted archives CVE-2026-5704 tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escap...

CVE-2026-81727

A flaw was found in NLTK. This vulnerability, a filesystem containment bypass, allows a local attacker with write access to a shared downloader directory to create special links hardlinks that point to files outside the intended installation area. When a package is extracted, these hardlinks can...

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 security, bug fix, and enhancement update

An update is available for tar. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The GNU tar program can save multiple files in an archive and restore files from ...

RLSA-2026:61581 Moderate: tar security, bug fix, and enhancement update

The GNU tar program can save multiple files in an archive and restore files from an archive. Security Fixes: tar: tar: Hidden file injection via crafted archives CVE-2026-5704 tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape CVE-2026-18477 tar: tar:...

RockyLinux 9 : tar (RLSA-2026:61581)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:61581 advisory. tar: tar: Hidden file injection via crafted archives CVE-2026-5704 tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escap...

Alibaba Cloud Linux 3 : 0276: python3 (ALINUX3-SA-2026:0276)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2026:0276 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-11940: tarfile.extractall with the 'data' ...

AlmaLinux 9 : tar (ALSA-2026:61581)

The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:61581 advisory. tar: tar: Hidden file injection via crafted archives CVE-2026-5704 tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape...

Moderate: Red Hat Security Advisory: tar security, bug fix, and enhancement update

An update for tar is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CV...

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...