# GNU tar vulnerabilities

Source: https://junglewise.ai/threats/technologies/tar  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/tar.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 10 vulnerabilities in GNU tar: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-18477, was published on 3 August 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 10 (0 critical, 0 exploited in the wild)

## About GNU tar

GNU utility for creating and extracting tar archive files.

## Latest GNU tar vulnerabilities

- [CVE-2026-18477: A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local…](https://junglewise.ai/threats/cve-2026-18477-a-toctou-time-of-check-time-of-use-vulnerability-in-gnu-tar-s) (medium, CVSS 4.4, published 3 Aug 2026)
- [CVE-2026-18508: A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not…](https://junglewise.ai/threats/cve-2026-18508-a-flaw-was-found-in-gnu-tar-when-extracting-an-archive-with-the) (medium, CVSS 4.4, published 3 Aug 2026)
- [CVE-2026-59875: node-tar denial of service via NUL byte in PAX records](https://junglewise.ai/threats/cve-2026-59875-node-tar-denial-of-service-via-nul-byte-in-pax-records) (medium, CVSS 5.3, published 8 Jul 2026)
- [CVE-2026-59874: isaacs node-tar infinite loop in tar.replace](https://junglewise.ai/threats/cve-2026-59874-isaacs-node-tar-infinite-loop-in-tar-replace) (high, CVSS 7.5, published 8 Jul 2026)
- [CVE-2026-59871: isaacs node-tar denial of service via PAX numeric path type confusion](https://junglewise.ai/threats/cve-2026-59871-isaacs-node-tar-denial-of-service-via-pax-numeric-path-type) (medium, CVSS 5.3, published 8 Jul 2026)
- [CVE-2026-5704: A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading…](https://junglewise.ai/threats/cve-2026-5704-a-flaw-was-found-in-tar-a-remote-attacker-could-exploit-this) (medium, CVSS 5, published 6 Apr 2026)
- [CVE-2026-29786: isaacs node-tar path traversal via drive-relative hardlink](https://junglewise.ai/threats/cve-2026-29786-isaacs-node-tar-path-traversal-via-drive-relative-hardlink) (medium, CVSS 6.3, published 7 Mar 2026)
- [CVE-2026-23950: node-tar race condition via Unicode path collision in path-reservations](https://junglewise.ai/threats/cve-2026-23950-node-tar-race-condition-via-unicode-path-collision-in-path) (high, CVSS 8.8, published 20 Jan 2026)
- [CVE-2026-23745: node-tar path traversal via insufficient linkpath sanitization](https://junglewise.ai/threats/cve-2026-23745-node-tar-path-traversal-via-insufficient-linkpath-sanitization) (medium, CVSS 6.1, published 16 Jan 2026)
- [CVE-1999-0202: GNU tar remote command execution in FTP sessions](https://junglewise.ai/threats/cve-1999-0202-gnu-tar-remote-command-execution-in-ftp-sessions) (high, CVSS 7.5, published 1 Jan 1997)

## Most severe GNU tar vulnerabilities

- [CVE-2026-23950: node-tar race condition via Unicode path collision in path-reservations](https://junglewise.ai/threats/cve-2026-23950-node-tar-race-condition-via-unicode-path-collision-in-path) (high, CVSS 8.8, published 20 Jan 2026)
- [CVE-2026-59874: isaacs node-tar infinite loop in tar.replace](https://junglewise.ai/threats/cve-2026-59874-isaacs-node-tar-infinite-loop-in-tar-replace) (high, CVSS 7.5, published 8 Jul 2026)
- [CVE-1999-0202: GNU tar remote command execution in FTP sessions](https://junglewise.ai/threats/cve-1999-0202-gnu-tar-remote-command-execution-in-ftp-sessions) (high, CVSS 7.5, published 1 Jan 1997)
- [CVE-2026-29786: isaacs node-tar path traversal via drive-relative hardlink](https://junglewise.ai/threats/cve-2026-29786-isaacs-node-tar-path-traversal-via-drive-relative-hardlink) (medium, CVSS 6.3, published 7 Mar 2026)
- [CVE-2026-23745: node-tar path traversal via insufficient linkpath sanitization](https://junglewise.ai/threats/cve-2026-23745-node-tar-path-traversal-via-insufficient-linkpath-sanitization) (medium, CVSS 6.1, published 16 Jan 2026)
- [CVE-2026-59871: isaacs node-tar denial of service via PAX numeric path type confusion](https://junglewise.ai/threats/cve-2026-59871-isaacs-node-tar-denial-of-service-via-pax-numeric-path-type) (medium, CVSS 5.3, published 8 Jul 2026)
- [CVE-2026-59875: node-tar denial of service via NUL byte in PAX records](https://junglewise.ai/threats/cve-2026-59875-node-tar-denial-of-service-via-nul-byte-in-pax-records) (medium, CVSS 5.3, published 8 Jul 2026)
- [CVE-2026-5704: A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading…](https://junglewise.ai/threats/cve-2026-5704-a-flaw-was-found-in-tar-a-remote-attacker-could-exploit-this) (medium, CVSS 5, published 6 Apr 2026)
- [CVE-2026-18508: A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not…](https://junglewise.ai/threats/cve-2026-18508-a-flaw-was-found-in-gnu-tar-when-extracting-an-archive-with-the) (medium, CVSS 4.4, published 3 Aug 2026)
- [CVE-2026-18477: A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local…](https://junglewise.ai/threats/cve-2026-18477-a-toctou-time-of-check-time-of-use-vulnerability-in-gnu-tar-s) (medium, CVSS 4.4, published 3 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Gnu technologies

- [Gnu Binutils](https://junglewise.ai/threats/technologies/binutils): 42 vulnerabilities
- [GnuTLS](https://junglewise.ai/threats/technologies/gnutls): 21 vulnerabilities
- [Gnu Glibc](https://junglewise.ai/threats/technologies/glibc): 20 vulnerabilities
- [Gnu LibreDWG](https://junglewise.ai/threats/technologies/libredwg): 14 vulnerabilities
- [Gnu Emacs](https://junglewise.ai/threats/technologies/emacs): 10 vulnerabilities
- [Gnu C Library](https://junglewise.ai/threats/technologies/c-library): 9 vulnerabilities
- [Gnu Bash](https://junglewise.ai/threats/technologies/bash): 7 vulnerabilities
- [Gnu Wget](https://junglewise.ai/threats/technologies/wget): 7 vulnerabilities
- [Gnu Cpio](https://junglewise.ai/threats/technologies/cpio): 5 vulnerabilities
- [Gnu Grub2](https://junglewise.ai/threats/technologies/grub2): 5 vulnerabilities
- [Gnu Aspell](https://junglewise.ai/threats/technologies/aspell): 4 vulnerabilities
- [GNU Coreutils](https://junglewise.ai/threats/technologies/coreutils): 4 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "GNU tar vulnerabilities", https://junglewise.ai/threats/technologies/tar, 13 November 2026.