# CVE-2026-5704: tar: A flaw was found in tar CVE-2026-5704 is fixed in 2 products on 1 platform, first by tar 1.29b-2ubuntu0.4+esm4, released April 6, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-5704 - Priority: Routine - CVSS: 5.6 (Medium) - EPSS: 0.0047 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Apr 6, 2026 ## Description A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | tar RHEL 10 | 1.35-13.el10_2 | [RHSA-2026:61586](https://patchblox.com/security/data/fix/linux/rhsa-2026-61586.md) | Jul 31, 2026 | | Linux | tar RHEL 8 | 2:1.30-13.el8_10 | [RHSA-2026:70390](https://patchblox.com/security/data/fix/linux/rhsa-2026-70390.md) | Sep 23, 2026 | | Linux | tar RHEL 9 | 2:1.34-13.el9_8 | [RHSA-2026:61581](https://patchblox.com/security/data/fix/linux/rhsa-2026-61581.md) | Sep 13, 2026 | | Linux | tar Ubuntu 18.04.6 LTS (bionic) | 1.29b-2ubuntu0.4+esm4 | [tar 1.29b-2ubuntu0.4+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tar-1.29b-2ubuntu0.4-esm4.md) | Apr 6, 2026 | | Linux | tar Ubuntu 20.04 LTS (focal) | 1.30+dfsg-7ubuntu0.20.04.4+esm3 | [tar 1.30+dfsg-7ubuntu0.20.04.4+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tar-1.30-dfsg-7ubuntu0.20.04.4-esm3.md) | Apr 6, 2026 | | Linux | tar Ubuntu 22.04.1 LTS (jammy) | 1.34+dfsg-1ubuntu0.1.22.04.6 | [tar 1.34+dfsg-1ubuntu0.1.22.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-tar-1.34-dfsg-1ubuntu0.1.22.04.6.md) | Apr 6, 2026 | | Linux | tar Ubuntu 24.04.5 LTS (noble) | 1.35+dfsg-3ubuntu0.4 | [tar 1.35+dfsg-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-tar-1.35-dfsg-3ubuntu0.4.md) | Apr 6, 2026 | | Linux | tar Ubuntu 26.04.1 LTS (resolute) | 1.35+dfsg-4ubuntu0.4 | [tar 1.35+dfsg-4ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-tar-1.35-dfsg-4ubuntu0.4.md) | Apr 6, 2026 | | Linux | tar almalinux 10 | 2:1.35-13.el10_2 | [ALSA-2026:61586](https://patchblox.com/security/data/fix/linux/alsa-2026-61586.md) | Aug 31, 2026 | | Linux | tar almalinux 8 | 2:1.30-13.el8_10 | [ALSA-2026:70390](https://patchblox.com/security/data/fix/linux/alsa-2026-70390.md) | Sep 22, 2026 | | Linux | tar almalinux 9 | 2:1.34-13.el9_8 | [ALSA-2026:61581](https://patchblox.com/security/data/fix/linux/alsa-2026-61581.md) | Aug 31, 2026 | | Linux | tar ol 10 | 2:1.35-13.el10_2 | [ELSA-2026-61586-0](https://patchblox.com/security/data/fix/linux/elsa-2026-61586-0.md) | Sep 1, 2026 | | Linux | tar ol 8 | 2:1.30-13.el8_10 | [ELSA-2026-70390](https://patchblox.com/security/data/fix/linux/elsa-2026-70390.md) | Sep 23, 2026 | | Linux | tar ol 9 | 2:1.34-13.el9_8 | [ELSA-2026-61581-0](https://patchblox.com/security/data/fix/linux/elsa-2026-61581-0.md) | Sep 1, 2026 | | Linux | tar opensuse-leap 16.0 | 1.35-160000.4.1 | [OPENSUSE-SU-2026:21070-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21070-1.md) | Jun 26, 2026 | | Linux | tar rocky 10 | 2:1.35-13.el10_2 | [RLSA-2026:61586](https://patchblox.com/security/data/fix/linux/rlsa-2026-61586.md) | Sep 11, 2026 | | Linux | tar rocky 8 | 2:1.30-13.el8_10 | [RLSA-2026:70390](https://patchblox.com/security/data/fix/linux/rlsa-2026-70390.md) | Sep 24, 2026 | | Linux | tar rocky 9 | 2:1.34-13.el9_8 | [RLSA-2026:61581](https://patchblox.com/security/data/fix/linux/rlsa-2026-61581.md) | Sep 1, 2026 | | Linux | tar sles 15.6 | 1.34-150000.3.42.1 | [SUSE-SU-2026:2714-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2714-1.md) | Jun 30, 2026 | | Linux | tar sles 15.7 | 1.34-150000.3.42.1 | [SUSE-SU-2026:2714-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2714-1.md) | Jun 30, 2026 | | Linux | tar sles 16.0 | 1.35-160000.4.1 | [SUSE-SU-2026:22377-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22377-1.md) | Jun 26, 2026 | | Linux | tar-scripts Ubuntu 18.04.6 LTS (bionic) | 1.29b-2ubuntu0.4+esm4 | [tar-scripts 1.29b-2ubuntu0.4+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tar-scripts-1.29b-2ubuntu0.4-esm4.md) | Apr 6, 2026 | | Linux | tar-scripts Ubuntu 20.04 LTS (focal) | 1.30+dfsg-7ubuntu0.20.04.4+esm3 | [tar-scripts 1.30+dfsg-7ubuntu0.20.04.4+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tar-scripts-1.30-dfsg-7ubuntu0.20.04.4-esm3.md) | Apr 6, 2026 | | Linux | tar-scripts Ubuntu 22.04.1 LTS (jammy) | 1.34+dfsg-1ubuntu0.1.22.04.6 | [tar-scripts 1.34+dfsg-1ubuntu0.1.22.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-tar-scripts-1.34-dfsg-1ubuntu0.1.22.04.6.md) | Apr 6, 2026 | | Linux | tar-scripts Ubuntu 24.04.5 LTS (noble) | 1.35+dfsg-3ubuntu0.4 | [tar-scripts 1.35+dfsg-3ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-tar-scripts-1.35-dfsg-3ubuntu0.4.md) | Apr 6, 2026 | | Linux | tar-scripts Ubuntu 26.04.1 LTS (resolute) | 1.35+dfsg-4ubuntu0.4 | [tar-scripts 1.35+dfsg-4ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-tar-scripts-1.35-dfsg-4ubuntu0.4.md) | Apr 6, 2026 | --- Data as of 2026-11-08T06:59:42Z UTC. 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