CVE-2026-4111

Published: Mar 13, 2026

Modified: May 20, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

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.

Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10	unaffected `0:3.7.7-5.el10_1 - < *`
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	unaffected `0:3.7.7-5.el10_0 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:3.5.3-7.el9_7 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:3.5.3-7.el9_7 - < *`
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected `0:3.5.3-2.el9_0.3 - < *`
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	unaffected `0:3.5.3-5.el9_2.1 - < *`
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected `0:3.5.3-4.el9_4.2 - < *`
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	unaffected `0:3.5.3-6.el9_6.1 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.13	unaffected `413.92.202604080111-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.14	unaffected `414.92.202605060243-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.15	unaffected `415.92.202605060220-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.16	unaffected `416.94.202604211449-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.17	unaffected `417.94.202605112123-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.18	unaffected `418.94.202604140044-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.19	unaffected `4.19.9.6.202604211219-0 - < *`
Red Hat	Red Hat AI Inference Server 3.2	unaffected `1775740563 - < *`
Red Hat	Red Hat AI Inference Server 3.3	unaffected `1778244559 - < *`
Red Hat	Red Hat AI Inference Server 3.3	unaffected `1778244531 - < *`
Red Hat	Red Hat AI Inference Server 3.3	unaffected `1778244546 - < *`
Red Hat	Red Hat AI Inference Server 3.3	unaffected `1775680192 - < *`
Red Hat	Red Hat AI Inference Server 3.3	unaffected `1775680262 - < *`
Red Hat	Red Hat AI Inference Server 3.3	unaffected `1775749857 - < *`
Red Hat	Red Hat Discovery 2	unaffected `1775668717 - < *`
Red Hat	Red Hat Discovery 2	unaffected `1775675922 - < *`
Red Hat	Red Hat Hardened Images	unaffected `3.8.7-1.hum1 - < *`
Red Hat	Red Hat Insights proxy 1.5	unaffected `1776868961 - < *`
Red Hat	Red Hat Update Infrastructure 5	unaffected `1776868774 - < *`
Red Hat	Red Hat Update Infrastructure 5	unaffected `1776868744 - < *`
Red Hat	Red Hat Update Infrastructure 5	unaffected `1776868772 - < *`
Red Hat	Red Hat Update Infrastructure 5	unaffected `1776868842 - < *`
Red Hat	Red Hat Enterprise Linux 6	All versions
Red Hat	Red Hat Enterprise Linux 7	All versions
Red Hat	Red Hat Enterprise Linux 8	All versions