Libarchive: infinite loop denial of service in rar5 decompression via archive_read_data() in libarchive
CVE-2026-4111 is fixed in 7 products on 1 platform, first by bsdcpio 3.2.2-3.1ubuntu0.7+esm2, released March 13, 2026. It is not reported as exploited. Patch Radar priority: High.
The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers. Security Fix(es): * libarchive: Infinite Loop Denial of Service in RAR5 Decompression via archive_read_data() in libarchive (CVE-2026-4111) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bsdcpio · Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | bsdcpio 3.2.2-3.1ubuntu0.7+esm2 | Mar 13, 2026 |
| bsdtar · RHEL 9 | 0:3.5.3-7.el9_7 | RHSA-2026:5080 | Apr 15, 2026 |
| bsdtar · Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | bsdtar 3.2.2-3.1ubuntu0.7+esm2 | Mar 13, 2026 |
| bsdtar · almalinux 10 | 3.7.7-5.el10_1 | ALSA-2026:5063 | Mar 19, 2026 |
| bsdtar · almalinux 9 | 3.5.3-7.el9_7 | ALSA-2026:5080 | Mar 19, 2026 |
| bsdtar · ol 10 | 0:3.7.7-5.el10_1 | ELSA-2026-5063 | Mar 19, 2026 |
| bsdtar · ol 9 | 0:3.5.3-7.el9_7 | ELSA-2026-5080 | Mar 19, 2026 |
| libarchive · Debian 12.15 (bookworm) | 3.6.2-1+deb12u4 | DEBIAN-CVE-2026-4111 | Mar 13, 2026 |
| libarchive · Debian 13.5 (trixie) | 3.7.4-4+deb13u1 | DEBIAN-CVE-2026-4111 | Mar 13, 2026 |
| libarchive · Debian 14 | 3.8.6-1 | DEBIAN-CVE-2026-4111 | Mar 13, 2026 |
| libarchive · RHEL 10 | 3.7.7-5.el10_0 | RHSA-2026:8865 | Apr 15, 2026 |
| libarchive · RHEL 9 | 0:3.5.3-7.el9_7 | RHSA-2026:5080 | Apr 15, 2026 |
| libarchive · almalinux 10 | 3.7.7-5.el10_1 | ALSA-2026:5063 | Mar 19, 2026 |
| libarchive · almalinux 9 | 3.5.3-7.el9_7 | ALSA-2026:5080 | Mar 19, 2026 |
| libarchive · ol 10 | 0:3.7.7-5.el10_1 | ELSA-2026-5063 | Mar 19, 2026 |
| libarchive · ol 9 | 0:3.5.3-7.el9_7 | ELSA-2026-5080 | Mar 19, 2026 |
| libarchive · rocky 10 | 0:3.7.7-5.el10_1 | RLSA-2026:5063 | Mar 27, 2026 |
| libarchive · rocky 9 | 0:3.5.3-7.el9_7 | RLSA-2026:5080 | Mar 26, 2026 |
| libarchive · sles 15.6 | 3.7.2-150600.3.20.1 | SUSE-SU-2026:2490-1 | Jun 22, 2026 |
| libarchive · sles 15.7 | 3.7.2-150600.3.20.1 | SUSE-SU-2026:2490-1 | Jun 22, 2026 |
| libarchive-devel · RHEL 9 | 0:3.5.3-7.el9_7 | RHSA-2026:5080 | Apr 15, 2026 |
| libarchive-devel · almalinux 10 | 3.7.7-5.el10_1 | ALSA-2026:5063 | Mar 19, 2026 |
| libarchive-devel · almalinux 9 | 3.5.3-7.el9_7 | ALSA-2026:5080 | Mar 19, 2026 |
| libarchive-devel · ol 10 | 0:3.7.7-5.el10_1 | ELSA-2026-5063 | Mar 19, 2026 |
| libarchive-devel · ol 9 | 0:3.5.3-7.el9_7 | ELSA-2026-5080 | Mar 19, 2026 |
| libarchive-tools · Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | libarchive-tools 3.2.2-3.1ubuntu0.7+esm2 | Mar 13, 2026 |
| libarchive-tools · Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.5+esm1 | libarchive-tools 3.4.0-2ubuntu1.5+esm1 | Mar 13, 2026 |
| libarchive-tools · Ubuntu 22.04.1 LTS (jammy) | 3.6.0-1ubuntu1.6 | libarchive-tools 3.6.0-1ubuntu1.6 | Mar 13, 2026 |
| libarchive-tools · Ubuntu 24.04.5 LTS (noble) | 3.7.2-2ubuntu0.6 | libarchive-tools 3.7.2-2ubuntu0.6 | Mar 13, 2026 |
| libarchive-tools · Ubuntu 25.10 (questing) | 3.7.7-0ubuntu3.1 | libarchive-tools 3.7.7-0ubuntu3.1 | Mar 13, 2026 |
| libarchive13 · Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | libarchive13 3.2.2-3.1ubuntu0.7+esm2 | Mar 13, 2026 |
| libarchive13 · Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.5+esm1 | libarchive13 3.4.0-2ubuntu1.5+esm1 | Mar 13, 2026 |
| libarchive13 · Ubuntu 22.04.1 LTS (jammy) | 3.6.0-1ubuntu1.6 | libarchive13 3.6.0-1ubuntu1.6 | Mar 13, 2026 |
| libarchive13t64 · Ubuntu 24.04.5 LTS (noble) | 3.7.2-2ubuntu0.6 | libarchive13t64 3.7.2-2ubuntu0.6 | Mar 13, 2026 |
| libarchive13t64 · Ubuntu 25.10 (questing) | 3.7.7-0ubuntu3.1 | libarchive13t64 3.7.7-0ubuntu3.1 | Mar 13, 2026 |
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