libarchive13: A double free issue has been identified in libarchive's RAR5 reader
CVE-2026-14164 is fixed in 6 products on 1 platform, first by RHSA-2026:56954, released May 24, 2026. It is not reported as exploited. Patch Radar priority: High.
A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bsdtar · RHEL 9 | 0:3.5.3-11.el9_8 | RHSA-2026:52674 | Aug 11, 2026 |
| bsdtar · almalinux 10 | 3.7.7-10.el10_2 | ALSA-2026:52675 | Aug 10, 2026 |
| bsdtar · almalinux 9 | 3.5.3-11.el9_8 | ALSA-2026:52674 | Aug 10, 2026 |
| bsdtar · ol 10 | 0:3.7.7-10.el10_2 | ELSA-2026-52675 | Aug 10, 2026 |
| bsdtar · ol 9 | 0:3.5.3-11.el9_8 | ELSA-2026-52674 | Aug 10, 2026 |
| libarchive · Debian 12.15 (bookworm) | 3.6.2-1+deb12u5 | DEBIAN-CVE-2026-14164 | Jul 6, 2026 |
| libarchive · Debian 14 | 3.8.8-1 | DEBIAN-CVE-2026-14164 | Jul 6, 2026 |
| libarchive · RHEL 10 | 3.7.7-5.el10_0.1 | RHSA-2026:56954 | May 24, 2026 |
| libarchive · RHEL 9 | 0:3.5.3-11.el9_8 | RHSA-2026:52674 | Aug 11, 2026 |
| libarchive · almalinux 10 | 3.7.7-10.el10_2 | ALSA-2026:52675 | Aug 10, 2026 |
| libarchive · almalinux 9 | 3.5.3-11.el9_8 | ALSA-2026:52674 | Aug 10, 2026 |
| libarchive · ol 10 | 0:3.7.7-10.el10_2 | ELSA-2026-52675 | Aug 10, 2026 |
| libarchive · ol 9 | 0:3.5.3-11.el9_8 | ELSA-2026-52674 | Aug 10, 2026 |
| libarchive · rocky 10 | 0:3.7.7-10.el10_2 | RLSA-2026:52675 | Aug 11, 2026 |
| libarchive · rocky 9 | 0:3.5.3-11.el9_8 | RLSA-2026:52674 | Aug 11, 2026 |
| libarchive-devel · RHEL 9 | 0:3.5.3-11.el9_8 | RHSA-2026:52674 | Aug 11, 2026 |
| libarchive-devel · almalinux 10 | 3.7.7-10.el10_2 | ALSA-2026:52675 | Aug 10, 2026 |
| libarchive-devel · almalinux 9 | 3.5.3-11.el9_8 | ALSA-2026:52674 | Aug 10, 2026 |
| libarchive-devel · ol 10 | 0:3.7.7-10.el10_2 | ELSA-2026-52675 | Aug 10, 2026 |
| libarchive-devel · ol 9 | 0:3.5.3-11.el9_8 | ELSA-2026-52674 | Aug 10, 2026 |
| libarchive-tools · Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.5+esm3 | libarchive-tools 3.4.0-2ubuntu1.5+esm3 | Jul 24, 2026 |
| libarchive-tools · Ubuntu 22.04.1 LTS (jammy) | 3.6.0-1ubuntu1.8 | libarchive-tools 3.6.0-1ubuntu1.8 | Jul 24, 2026 |
| libarchive-tools · Ubuntu 24.04.5 LTS (noble) | 3.7.2-2ubuntu0.8 | libarchive-tools 3.7.2-2ubuntu0.8 | Jul 24, 2026 |
| libarchive-tools · Ubuntu 26.04.1 LTS (resolute) | 3.8.5-1ubuntu2.2 | libarchive-tools 3.8.5-1ubuntu2.2 | Jul 10, 2026 |
| libarchive13 · Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.5+esm3 | libarchive13 3.4.0-2ubuntu1.5+esm3 | Jul 24, 2026 |
| libarchive13 · Ubuntu 22.04.1 LTS (jammy) | 3.6.0-1ubuntu1.8 | libarchive13 3.6.0-1ubuntu1.8 | Jul 24, 2026 |
| libarchive13t64 · Ubuntu 24.04.5 LTS (noble) | 3.7.2-2ubuntu0.8 | libarchive13t64 3.7.2-2ubuntu0.8 | Jul 24, 2026 |
| libarchive13t64 · Ubuntu 26.04.1 LTS (resolute) | 3.8.5-1ubuntu2.2 | libarchive13t64 3.8.5-1ubuntu2.2 | Jul 10, 2026 |
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