CVE-2026-4111 (GCVE-0-2026-4111)
Vulnerability from cvelistv5
Published
2026-03-13 11:45
Modified
2026-04-09 20:26
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
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.
References
https://access.redhat.com/errata/RHSA-2026:5063 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:5080 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:6647 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7093 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7105 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7106 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7329 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7335 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-4111 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2446453 issue-tracking, x_refsource_REDHAT
https://github.com/libarchive/libarchive/pull/2877
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:3.7.7-5.el10_1   < *
    cpe:/o:redhat:enterprise_linux:10.1
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.5.3-7.el9_7   < *
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.5.3-7.el9_7   < *
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:3.5.3-2.el9_0.3   < *
    cpe:/a:redhat:rhel_e4s:9.0::appstream
    cpe:/o:redhat:rhel_e4s:9.0::baseos
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:3.5.3-5.el9_2.1   < *
    cpe:/a:redhat:rhel_e4s:9.2::appstream
    cpe:/o:redhat:rhel_e4s:9.2::baseos
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:3.5.3-4.el9_4.2   < *
    cpe:/o:redhat:rhel_eus:9.4::baseos
    cpe:/a:redhat:rhel_eus:9.4::crb
    cpe:/a:redhat:rhel_eus:9.4::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:3.5.3-6.el9_6.1   < *
    cpe:/o:redhat:rhel_eus:9.6::baseos
    cpe:/a:redhat:rhel_eus:9.6::appstream
 Create a notification for this product.
   Red Hat Red Hat AI Inference Server 3.2 Unaffected: sha256:54616c9f3e4d27120504b0b2020432ef3ff85286a50de7be842f05df0cfcd69e   < *
    cpe:/a:redhat:ai_inference_server:3.2::el9
 Create a notification for this product.
   Red Hat Red Hat Discovery 2 Unaffected: sha256:040dadd657afdb9f0914f896a4962fd3dbf40b70c8037e4d72b6801b766c9b7d   < *
    cpe:/a:redhat:discovery:2::el9
 Create a notification for this product.
   Red Hat Red Hat Discovery 2 Unaffected: sha256:062310de4b34e278f8c7e4634def673a77d1228d493541ef1264ba4cb83b68eb   < *
    cpe:/a:redhat:discovery:2::el9
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
   Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
 Create a notification for this product.
   Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
 Create a notification for this product.
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\"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:6647\", \"name\": \"RHSA-2026:6647\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:7093\", \"name\": \"RHSA-2026:7093\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:7105\", \"name\": \"RHSA-2026:7105\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:7106\", \"name\": \"RHSA-2026:7106\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:7329\", \"name\": \"RHSA-2026:7329\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:7335\", \"name\": \"RHSA-2026:7335\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2026-4111\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2446453\", \"name\": \"RHBZ#2446453\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://github.com/libarchive/libarchive/pull/2877\"}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-835\", \"description\": \"Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-04-09T20:26:32.673Z\"}, \"x_redhatCweChain\": \"CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-4111\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-09T20:26:32.673Z\", \"dateReserved\": \"2026-03-13T11:33:42.645Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-03-13T11:45:20.653Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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