CVE-2026-5121 (GCVE-0-2026-5121)
Vulnerability from cvelistv5
Published
2026-03-30 07:47
Modified
2026-06-04 17:49
CWE
  • CWE-190 - Integer Overflow or Wraparound
Summary
A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.
References
https://access.redhat.com/errata/RHSA-2026:10065 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10097 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:11768 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:12071 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:12274 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13812 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14773 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14937 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:15087 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:16008 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:16009 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:16030 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:16174 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:17596 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19724 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19725 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20040 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:21690 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8510 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8517 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8521 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8534 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8864 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8866 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8867 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8873 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8908 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8944 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:9026 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:9592 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:9832 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-5121 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2452945 issue-tracking, x_refsource_REDHAT
https://github.com/advisories/GHSA-2vwv-vqpv-v8vc
https://github.com/libarchive/libarchive/pull/2934
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.1.2-14.el7_9.2   < *
    cpe:/o:redhat:rhel_els:7
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   Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:3.3.3-7.el8_10   < *
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
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   Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:3.3.2-8.el8_2.2   < *
    cpe:/o:redhat:rhel_aus:8.2::baseos
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   Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:3.3.3-1.el8_4.2   < *
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
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   Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:3.3.3-1.el8_4.2   < *
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
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   Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:3.3.3-6.el8_6.1   < *
    cpe:/o:redhat:rhel_aus:8.6::baseos
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/o:redhat:rhel_tus:8.6::baseos
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   Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:3.3.3-6.el8_6.1   < *
    cpe:/o:redhat:rhel_aus:8.6::baseos
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/o:redhat:rhel_tus:8.6::baseos
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   Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:3.3.3-6.el8_6.1   < *
    cpe:/o:redhat:rhel_aus:8.6::baseos
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/o:redhat:rhel_tus:8.6::baseos
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   Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:3.3.3-5.el8_8.2   < *
    cpe:/o:redhat:rhel_e4s:8.8::baseos
    cpe:/o:redhat:rhel_tus:8.8::baseos
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   Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:3.3.3-5.el8_8.2   < *
    cpe:/o:redhat:rhel_e4s:8.8::baseos
    cpe:/o:redhat:rhel_tus:8.8::baseos
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   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.5.3-9.el9_7   < *
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
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   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.5.3-9.el9_7   < *
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
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   Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:3.5.3-2.el9_0.4   < *
    cpe:/a:redhat:rhel_e4s:9.0::appstream
    cpe:/o:redhat:rhel_e4s:9.0::baseos
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   Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:3.5.3-5.el9_2.2   < *
    cpe:/a:redhat:rhel_e4s:9.2::appstream
    cpe:/o:redhat:rhel_e4s:9.2::baseos
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   Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:3.5.3-5.el9_4   < *
    cpe:/a:redhat:rhel_eus:9.4::appstream
    cpe:/a:redhat:rhel_eus:9.4::crb
    cpe:/o:redhat:rhel_eus:9.4::baseos
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   Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:3.5.3-7.el9_6.1   < *
    cpe:/a:redhat:rhel_eus:9.6::appstream
    cpe:/o:redhat:rhel_eus:9.6::baseos
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   Red Hat Red Hat OpenShift Container Platform 4.12 Unaffected: 412.86.202604281506-0   < *
    cpe:/a:redhat:openshift:4.12::el8
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   Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202605271328-0   < *
    cpe:/a:redhat:openshift:4.13::el9
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   Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202605060243-0   < *
    cpe:/a:redhat:openshift:4.14::el9
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   Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202605060220-0   < *
    cpe:/a:redhat:openshift:4.15::el9
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   Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202604211449-0   < *
    cpe:/a:redhat:openshift:4.16::el9
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   Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202605112123-0   < *
    cpe:/a:redhat:openshift:4.17::el9
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   Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202604240015-0   < *
    cpe:/a:redhat:openshift:4.18::el9
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   Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202605201155-0   < *
    cpe:/a:redhat:openshift:4.19::el9
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   Red Hat RHEL-8 based Middleware Containers Unaffected: 7.13.5-4.1777325677   < *
    cpe:/a:redhat:rhosemc:1.0::el8
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   Red Hat RHEL-8 based Middleware Containers Unaffected: 7.13.5-4.1777325711   < *
    cpe:/a:redhat:rhosemc:1.0::el8
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   Red Hat RHEL-8 based Middleware Containers Unaffected: 7.13.5-4.1777325710   < *
    cpe:/a:redhat:rhosemc:1.0::el8
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   Red Hat RHEL-8 based Middleware Containers Unaffected: 7.13.5-3.1777325680   < *
    cpe:/a:redhat:rhosemc:1.0::el8
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   Red Hat RHEL-8 based Middleware Containers Unaffected: 7.13.5-4.1777325709   < *
    cpe:/a:redhat:rhosemc:1.0::el8
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   Red Hat RHEL-8 based Middleware Containers Unaffected: 7.13.5-4.1777325680   < *
    cpe:/a:redhat:rhosemc:1.0::el8
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   Red Hat RHEL-8 based Middleware Containers Unaffected: 7.13.5-4.1777325708   < *
    cpe:/a:redhat:rhosemc:1.0::el8
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   Red Hat Red Hat AI Inference Server 3.2 Unaffected: 1779223654   < *
    cpe:/a:redhat:ai_inference_server:3.2::el9
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   Red Hat Red Hat AI Inference Server 3.2 Unaffected: 1779223651   < *
    cpe:/a:redhat:ai_inference_server:3.2::el9
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   Red Hat Red Hat AI Inference Server 3.3 Unaffected: 1778244559   < *
    cpe:/a:redhat:ai_inference_server:3.3::el9
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   Red Hat Red Hat AI Inference Server 3.3 Unaffected: 1778244531   < *
    cpe:/a:redhat:ai_inference_server:3.3::el9
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   Red Hat Red Hat AI Inference Server 3.3 Unaffected: 1778274666   < *
    cpe:/a:redhat:ai_inference_server:3.3::el9
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   Red Hat Red Hat AI Inference Server 3.3 Unaffected: 1778244546   < *
    cpe:/a:redhat:ai_inference_server:3.3::el9
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   Red Hat Red Hat Discovery 2 Unaffected: 1778156756   < *
    cpe:/a:redhat:discovery:2::el9
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   Red Hat Red Hat Hardened Images Unaffected: 3.8.7-1.hum1   < *
    cpe:/a:redhat:hummingbird:1
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   Red Hat Red Hat Insights proxy 1.5 Unaffected: 1776868961   < *
    cpe:/a:redhat:insights_proxy:1.5::el9
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   Red Hat Red Hat Update Infrastructure 5 Unaffected: 1776868774   < *
    cpe:/a:redhat:rhui:5::el9
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   Red Hat Red Hat Update Infrastructure 5 Unaffected: 1776868744   < *
    cpe:/a:redhat:rhui:5::el9
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   Red Hat Red Hat Update Infrastructure 5 Unaffected: 1776868772   < *
    cpe:/a:redhat:rhui:5::el9
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   Red Hat Red Hat Update Infrastructure 5 Unaffected: 1776868842   < *
    cpe:/a:redhat:rhui:5::el9
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   Red Hat Red Hat Update Infrastructure 5 Unaffected: 1777459441   < *
    cpe:/a:redhat:rhui:5::el9
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   Red Hat Red Hat Update Infrastructure 5 Unaffected: 1777454300   < *
    cpe:/a:redhat:rhui:5::el9
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   Red Hat Red Hat Update Infrastructure 5 Unaffected: 1777459504   < *
    cpe:/a:redhat:rhui:5::el9
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   Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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   Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-5121",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-31T03:55:34.402717Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-190",
                "description": "CWE-190 Integer Overflow or Wraparound",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-31T13:52:02.886Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_els:7"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.1.2-14.el7_9.2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8::crb",
            "cpe:/o:redhat:enterprise_linux:8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-7.el8_10",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.2::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.2-8.el8_2.2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.4::baseos",
            "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-1.el8_4.2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.4::baseos",
            "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-1.el8_4.2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.6::baseos",
            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-6.el8_6.1",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.6::baseos",
            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-6.el8_6.1",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.6::baseos",
            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-6.el8_6.1",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_e4s:8.8::baseos",
            "cpe:/o:redhat:rhel_tus:8.8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-5.el8_8.2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_e4s:8.8::baseos",
            "cpe:/o:redhat:rhel_tus:8.8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.3.3-5.el8_8.2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9::appstream",
            "cpe:/o:redhat:enterprise_linux:9::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.5.3-9.el9_7",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9::appstream",
            "cpe:/o:redhat:enterprise_linux:9::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "libarchive",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.5.3-9.el9_7",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:9.0::appstream",
            "cpe:/o:redhat:rhel_e4s:9.0::baseos"
          ],
          "defaultStatus": "affected",
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      "timeline": [
        {
          "lang": "en",
          "time": "2026-03-30T07:40:25.358Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-03-30T07:44:15.222Z",
          "value": "Made public."
        }
      ],
      "title": "Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing",
      "workarounds": [
        {
          "lang": "en",
          "value": "To mitigate this issue, avoid processing untrusted ISO9660 images with applications that utilize `libarchive`. Users should only extract or read content from ISO images obtained from trusted sources."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-190: Integer Overflow or Wraparound"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-5121",
    "datePublished": "2026-03-30T07:47:28.562Z",
    "dateReserved": "2026-03-30T07:39:27.352Z",
    "dateUpdated": "2026-06-04T17:49:35.672Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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