CVE-2026-4111
Fixed in a distro release EPSS <1%CVSS 7.5
A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archive_read_data() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This condition results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum validation and appears structurally valid, affected applications cannot detect the issue before processing. This can allow attackers to cause persistent denial-of-service conditions in services that automatically process archives.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat OpenShift Container Platform 4.13, Red Hat OpenShift Container Platform 4.14, Red Hat OpenShift Container Platform 4.15, Red Hat OpenShift Container Platform 4.16, Red Hat OpenShift Container Platform 4.17, Red Hat OpenShift Container Platform 4.18, Red Hat OpenShift Container Platform 4.19, Cert Manager support for Red Hat OpenShift release 1.18, Red Hat AI Inference Server 3.2, Red Hat AI Inference Server 3.3, Red Hat Discovery 2, Red Hat Hardened Images, Red Hat Insights proxy 1.5, Red Hat Update Infrastructure 5, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | bsdtar | 3.7.7-5.el10_1 |
| AlmaLinux 10 | libarchive | 3.7.7-5.el10_1 |
| AlmaLinux 10 | libarchive-devel | 3.7.7-5.el10_1 |
| AlmaLinux 9 | bsdtar | 3.5.3-7.el9_7 |
| AlmaLinux 9 | libarchive | 3.5.3-7.el9_7 |
| AlmaLinux 9 | libarchive-devel | 3.5.3-7.el9_7 |
| Debian 12 | libarchive | 3.6.2-1+deb12u4 |
| Debian 13 | libarchive | 3.7.4-4+deb13u1 |
| Debian 14 | libarchive | 3.8.6-1 |
| Red Hat Enterprise Linux 10.1 | bsdcat-debuginfo | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | bsdcpio-debuginfo | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | bsdtar | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | bsdtar-debuginfo | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | bsdunzip-debuginfo | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | libarchive | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | libarchive-debuginfo | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | libarchive-debugsource | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 10.1 | libarchive-devel | 0:3.7.7-5.el10_1 |
| Red Hat Enterprise Linux 9 | bsdcat-debuginfo | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux 9 | bsdcpio-debuginfo | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux 9 | bsdtar | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux 9 | bsdtar-debuginfo | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive-debuginfo | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive-debugsource | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive-devel | 0:3.5.3-7.el9_7 |
| Red Hat Enterprise Linux eus 10.0 | bsdcat-debuginfo | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | bsdcpio-debuginfo | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | bsdtar | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | bsdtar-debuginfo | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | bsdunzip-debuginfo | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | libarchive | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | libarchive-debuginfo | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | libarchive-debugsource | 0:3.7.7-5.el10_0 |
| Red Hat Enterprise Linux eus 10.0 | libarchive-devel | 0:3.7.7-5.el10_0 |
| Red Hat hummingbird 1 | libarchive | 0:3.8.7-1.hum1 |
| Red Hat hummingbird 1 | libarchive-devel | 0:3.8.7-1.hum1 |
| Red Hat rhel e4s 9.0 | bsdcat-debuginfo | 0:3.5.3-2.el9_0.3 |
| Red Hat rhel e4s 9.0 | bsdcpio-debuginfo | 0:3.5.3-2.el9_0.3 |
| Red Hat rhel e4s 9.0 | bsdtar | 0:3.5.3-2.el9_0.3 |
| Red Hat rhel e4s 9.0 | bsdtar-debuginfo | 0:3.5.3-2.el9_0.3 |
| Red Hat rhel e4s 9.0 | libarchive | 0:3.5.3-2.el9_0.3 |
| Red Hat rhel e4s 9.0 | libarchive-debuginfo | 0:3.5.3-2.el9_0.3 |
| Red Hat rhel e4s 9.0 | libarchive-debugsource | 0:3.5.3-2.el9_0.3 |
| Red Hat rhel e4s 9.2 | bsdcat-debuginfo | 0:3.5.3-5.el9_2.1 |
| Red Hat rhel e4s 9.2 | bsdcpio-debuginfo | 0:3.5.3-5.el9_2.1 |
| Red Hat rhel e4s 9.2 | bsdtar | 0:3.5.3-5.el9_2.1 |
| Red Hat rhel e4s 9.2 | bsdtar-debuginfo | 0:3.5.3-5.el9_2.1 |
| Red Hat rhel e4s 9.2 | libarchive | 0:3.5.3-5.el9_2.1 |
| Red Hat rhel e4s 9.2 | libarchive-debuginfo | 0:3.5.3-5.el9_2.1 |
| Red Hat rhel e4s 9.2 | libarchive-debugsource | 0:3.5.3-5.el9_2.1 |
| Red Hat rhel eus 9.4 | bsdcat-debuginfo | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.4 | bsdcpio-debuginfo | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.4 | bsdtar | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.4 | bsdtar-debuginfo | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.4 | libarchive | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.4 | libarchive-debuginfo | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.4 | libarchive-debugsource | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.4 | libarchive-devel | 0:3.5.3-4.el9_4.2 |
| Red Hat rhel eus 9.6 | bsdcat-debuginfo | 0:3.5.3-6.el9_6.1 |
| Red Hat rhel eus 9.6 | bsdcpio-debuginfo | 0:3.5.3-6.el9_6.1 |
| Red Hat rhel eus 9.6 | bsdtar | 0:3.5.3-6.el9_6.1 |
| Red Hat rhel eus 9.6 | bsdtar-debuginfo | 0:3.5.3-6.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive | 0:3.5.3-6.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive-debuginfo | 0:3.5.3-6.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive-debugsource | 0:3.5.3-6.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive-devel | 0:3.5.3-6.el9_6.1 |
| Rocky Linux 10 | libarchive | 0:3.7.7-5.el10_1 |
| Rocky Linux 9 | libarchive | 0:3.5.3-7.el9_7 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Micro 5.3 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Micro 5.4 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Micro 5.5 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Micro 6.0 | libarchive | 3.6.2-6.1 |
| SUSE Linux Micro 6.1 | libarchive | 3.7.4-slfo.1.1_4.1 |
| Ubuntu 22.04 LTS | libarchive | 3.6.0-1ubuntu1.6 |
| Ubuntu 24.04 LTS | libarchive | 3.7.2-2ubuntu0.6 |
| Ubuntu 25.10 | libarchive | 3.7.7-0ubuntu3.1 |
| Ubuntu Pro 14.04 LTS | libarchive | 3.1.2-7ubuntu2.8+esm4 |
| Ubuntu Pro 16.04 LTS | libarchive | 3.1.2-11ubuntu0.16.04.8+esm2 |
| Ubuntu Pro 18.04 LTS | libarchive | 3.2.2-3.1ubuntu0.7+esm2 |
| Ubuntu Pro 20.04 LTS | libarchive | 3.4.0-2ubuntu1.5+esm1 |