Isaacs Tar vulnerabilities

CVE-2026-31802 [HIGH] CWE-22 CVE-2026-31802: node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.

CVE-2026-29786 [HIGH] CWE-22 CVE-2026-29786: node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creati 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. This issue has been patched in version 7.5.10.

CVE-2026-26960 [HIGH] CWE-22 CVE-2026-26960: node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, 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 user. Severity is high because the primitive bypasses path p

CVE-2026-24842 [HIGH] CWE-22 CVE-2026-24842: node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security c node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses different path resolution semantics than the actual hardlink creation logic. This mismatch allows an attacker to craft a malicious TAR archive that bypasses path traversal protections and creates hardlinks to arbitrary file

CVE-2026-23950 [MEDIUM] CWE-176 CVE-2026-23950: node-tar,a Tar for Node.js, has a race condition vulnerability in versions up to and including 7.5.3 node-tar,a Tar for Node.js, has a race condition vulnerability in versions up to and including 7.5.3. This is due to an incomplete handling of Unicode path collisions in the `path-reservations` system. On case-insensitive or normalization-insensitive filesystems (such as macOS APFS, In which it has been tested), the library fails to lock colliding p

CVE-2026-23745 [HIGH] CWE-22 CVE-2026-23745: node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Lin node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolut

CVE-2024-28863 [MEDIUM] CWE-400 CVE-2024-28863: node-tar is a Tar for Node.js. node-tar prior to version 6.2.1 has no limit on the number of sub-fol node-tar is a Tar for Node.js. node-tar prior to version 6.2.1 has no limit on the number of sub-folders created in the folder creation process. An attacker who generates a large number of sub-folders can consume memory on the system running node-tar and even crash the Node.js client within few seconds of running it using a path with too many sub-fo

CVE-2018-20834 [HIGH] CWE-59 CVE-2018-20834: A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). An Arbitrary F A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content.