CVE-2026-23745

CVE-2026-23745: node-tar 任意文件覆盖 研究: Joshua van Rijswijk 説明 CVE-2026-23745 の PoC。これは node-tar（7.5.2）における高深刻度のパストラバーサル脆弱性です。 このライブラリは、ハードリンクおよびシンボリックリンクの linkpath フィールド内の絶対パスをサニタイズできません。これにより、悪意のある tar アーカイブが抽出ルートをバイパスし、preservePaths: false が設定されている場合でも、ホストシステム上の任意のファイルを上書きできるようになります。 脆弱性...

Rocky Linux 8 [CIQ] Security Update: git / git-all / git-core / git-core-debuginfo / git-core-doc / etc Multiple Vulnerabilities (crlsa-2024_4084)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20244084 advisory. git: Recursive clones RCE CVE-2024-32002 git: RCE while cloning local repos CVE-2024-32004 git: additional local RCE CVE-2024-32465 git: insecure hardlinks...

CentOS Linux 8.4 [TuxCare] Security Update: git / git-all / git-core / git-core-doc / git-credential-libsecret / etc (CENTOS8.4:CLSA-2026:1768392809)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1768392809 advisory. - Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, when cloning a local source...

Rocky Linux 9 [CIQ] Security Update: git / git-all / git-core / git-core-debuginfo / git-core-doc / etc Multiple Vulnerabilities (crlsa-2024_4083)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20244083 advisory. git: Recursive clones RCE CVE-2024-32002 git: RCE while cloning local repos CVE-2024-32004 git: additional local RCE CVE-2024-32465 git: insecure hardlinks...

CentOS Linux 7 [TuxCare] Security Update: emacs-git / emacs-git-el / git / git-all / git-bzr / git-cvs / etc (CENTOS7:CLSA-2026:1768917823)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1768917823 advisory. - Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, when cloning a local source...

CentOS Linux 6 [TuxCare] Security Update: emacs-git / emacs-git-el / git / git-all / git-cvs / git-daemon / etc (CENTOS6:CLSA-2026:1767973696)

The CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS6:CLSA-2026:1767973696 advisory. - Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, when cloning a local source...

CVE-2026-96279 Flatpak: flatpak: path traversal issue in oci archive extraction via hardlinks

A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as...

CVE-2026-96279 Flatpak: flatpak: path traversal issue in oci archive extraction via hardlinks

A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as...

CVE-2026-96279

A path traversal issue in the Flatpak OCI archive extraction process allows a malicious OCI registry to hardlink arbitrary host files into the extraction directory. This occurs when a user installs or updates a Flatpak application from an OCI remote, potentially leading to the disclosure of sensi...

Oracle Linux 8 : tar (ELSA-2026-70390)

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-70390 advisory. - Backport upstream fix for CVE-2026-5704 file injection hidden from -t - Fix --one-top-level with absolute path broken by the CVE-2025-45582 fix Also...

SUSE CVE-2026-81727

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader...

tar security, bug fix, and enhancement update

2:1.34-13 - Backport upstream patches for CVE-2026-18477, fixes a bug where incremental restore with cyclic renames between backups may create a temporary directory at an archive-controlled path outside the extraction tree. The fix for CVE-2025-45582 already prevents exploiting this problem, so i...

GHSA-4XW3-JF9X-X7MF Duplicate Advisory: Downloader.download follows hardlinks and overwrites outside-root files

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-f794-5jv7-7672. This link is maintained to preserve external references. Original Description NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and...

CVE-2026-81727

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader...

CVE-2026-81727: Improper Link Resolution Before File Access

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader...

PT-2026-82622

Name of the Vulnerable Software and Affected Versions NLTK versions prior to 3.10.3 Description A filesystem containment bypass exists in the Downloader.download and Downloader.incr download methods. Attackers with write access to a shared downloader directory can create hardlinks pointing to fil...

SUSE 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...

Amazon Linux 2023 : python3.14, python3.14-devel, python3.14-freethreading (ALAS2023-2026-1999)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1999 advisory. When using the configparser module to write configuration filescontaining multi-line text values with carriage return characters \r theresulting file could be injected with unexpected keys and...

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...

UBUNTU-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...