Gnu Tar vulnerabilities

CVE-2026-26960 [HIGH] CWE-22 Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in node-tar Extraction Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in node-tar Extraction ### Summary `tar.extract()` in Node `tar` allows an attacker-controlled archive to create a hardlink inside the extraction directory that points to a file outside the extraction root, using default options. This enables **arbitrary file read and write** as the extracting u

CVE-2026-33056 [MEDIUM] CWE-61 tar-rs `unpack_in` can chmod arbitrary directories by following symlinks tar-rs `unpack_in` can chmod arbitrary directories by following symlinks ## Summary When unpacking a tar archive, the `tar` crate's `unpack_dir` function uses `fs::metadata()` to check whether a path that already exists is a directory. Because `fs::metadata()` follows symbolic links, a crafted tarball containing a symlink entry followed by a directory entry with the same name causes the crat

CVE-2026-23950 [HIGH] CWE-176 Race Condition in node-tar Path Reservations via Unicode Ligature Collisions on macOS APFS Race Condition in node-tar Path Reservations via Unicode Ligature Collisions on macOS APFS **TITLE**: Race Condition in node-tar Path Reservations via Unicode Sharp-S (ß) Collisions on macOS APFS **AUTHOR**: Tomás Illuminati ### Details A race condition vulnerability exists in `node-tar` (v7.5.3) this is to an incomplete handling of Unicode path collisions in the `path-res

CVE-2026-23745 [HIGH] CWE-22 node-tar is Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization node-tar is Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization ### Summary The `node-tar` library (` { console.log('[*] Verifying payload...') // Test Hardlink Overwrite try { fs.writeFileSync(path.join(out, 'exploit_hard'), 'OVERWRITTEN') if (fs.readFileSync(secret, 'utf8') === 'OVERWRITTEN') { console.log('[+]

CVE-2007-4131 [MEDIUM] CVE-2007-4131: Directory traversal vulnerability in the contains_dot_dot function in src/names.c in GNU tar allows Directory traversal vulnerability in the contains_dot_dot function in src/names.c in GNU tar allows user-assisted remote attackers to overwrite arbitrary files via certain //.. (slash slash dot dot) sequences in directory symlinks in a TAR archive.

CVE-2024-28863 [MEDIUM] CWE-400 Denial of service while parsing a tar file due to lack of folders count validation Denial of service while parsing a tar file due to lack of folders count validation ## Description: During some analysis today on npm's `node-tar` package I came across the folder creation process, Basicly if you provide node-tar with a path like this `./a/b/c/foo.txt` it would create every folder and sub-folder here a, b and c until it reaches the last folder to create `foo.txt`, I

CVE-2026-29786 [HIGH] CWE-22 tar has Hardlink Path Traversal via Drive-Relative Linkpath tar has Hardlink Path Traversal via Drive-Relative Linkpath ### Summary `tar` (npm) 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. ### Details The extraction logic in `Unpack[STRIPABSOLUTEPATH]` checks for `..` segments *before

CVE-2026-59875 [MEDIUM] CWE-248 node-tar: Uncaught Exception DoS via NUL byte in PAX path/linkpath records node-tar: Uncaught Exception DoS via NUL byte in PAX path/linkpath records ## Summary `node-tar` strips trailing `NUL` bytes from long-name (`L`) and long-linkpath (`K`) GNU extended headers but does **not** apply the same sanitization to equivalent fields delivered via PAX (`x` typeflag) extended headers. A PAX record of the form `path=visible.txt\x00hidden.txt` is parsed verbatim into `

CVE-2022-48303 [MEDIUM] CWE-125 CVE-2022-48303: GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory f GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.

CVE-2026-31802 [HIGH] CWE-22 node-tar Symlink Path Traversal via Drive-Relative Linkpath node-tar Symlink Path Traversal via Drive-Relative Linkpath ### Summary `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. ### Details The extraction logic in `Unpack[STRIPABSOLUTEPATH]` validates `..` segments

CVE-2002-1216 [MEDIUM] CVE-2002-1216: GNU tar 1.13.19 and other versions before 1.13.25 allows remote attackers to overwrite arbitrary fil GNU tar 1.13.19 and other versions before 1.13.25 allows remote attackers to overwrite arbitrary files via a symlink attack, as the result of a modification that effectively disabled the security check.

CVE-2002-0399 [MEDIUM] CVE-2002-0399: Directory traversal vulnerability in GNU tar 1.13.19 through 1.13.25, and possibly later versions, a Directory traversal vulnerability in GNU tar 1.13.19 through 1.13.25, and possibly later versions, allows attackers to overwrite arbitrary files during archive extraction via a (1) "/.." or (2) "./.." string, which removes the leading slash but leaves the "..", a variant of CVE-2001-1267.

CVE-2026-53655 [MEDIUM] CWE-436 node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling) node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling) ### Summary `tar` (node-tar) applies a PAX extended header's `size=` record (and other PAX overrides) to the **next header entry of any type**, including intermediary met

CVE-2006-0300 [MEDIUM] CVE-2006-0300: Buffer overflow in tar 1.14 through 1.15.90 allows user-assisted attackers to cause a denial of serv Buffer overflow in tar 1.14 through 1.15.90 allows user-assisted attackers to cause a denial of service (application crash) and possibly execute code via unspecified vectors involving PAX extended headers.

CVE-2025-64118 [MEDIUM] CWE-362 node-tar has a race condition leading to uninitialized memory exposure node-tar has a race condition leading to uninitialized memory exposure ### Summary Using `.t` (aka `.list`) with `{ sync: true }` to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. ### Details See: * https://github.com/isaacs/node-tar/issues/445 * https://github.com/isaacs/node-tar/pull/446 * Regression happen

CVE-2023-39804 [MEDIUM] CVE-2023-39804: In GNU tar before 1.35, mishandled extension attributes in a PAX archive can lead to an application In GNU tar before 1.35, mishandled extension attributes in a PAX archive can lead to an application crash in xheader.c.

CVE-2005-1918 [LOW] CVE-2005-1918: The original patch for a GNU tar directory traversal vulnerability (CVE-2002-0399) in Red Hat Enterp The original patch for a GNU tar directory traversal vulnerability (CVE-2002-0399) in Red Hat Enterprise Linux 3 and 2.1 uses an "incorrect optimization" that allows user-assisted attackers to overwrite arbitrary files via a crafted tar file, probably involving "/../" sequences with a leading "/".

CVE-2025-45582 [MEDIUM] CWE-24 CVE-2025-45582: GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a c GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain two-step process. First, the victim must extract an archive that contains a ../ symlink to a critical directory. Second, the victim must extract an archive that contains a critical file, specified via a relative pathname that begins with the sym

CVE-2018-20482 [MEDIUM] CWE-835 CVE-2018-20482: GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which all GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).

CVE-2001-1267 [LOW] CVE-2001-1267: Directory traversal vulnerability in GNU tar 1.13.19 and earlier allows local users to overwrite arb Directory traversal vulnerability in GNU tar 1.13.19 and earlier allows local users to overwrite arbitrary files during archive extraction via a tar file whose filenames contain a .. (dot dot).