Vulnerability-Lookup

RHSA-2026:20886

Vulnerability from csaf_redhat - Published: 2026-05-26 11:33 - Updated: 2026-05-27 07:02

Summary

Red Hat Security Advisory: OpenShift Virtualization v4.13 Images

Severity

Important

Notes

Topic: Red Hat OpenShift Virtualization release v4.13 is now available with updates to packages and images that fix several bugs and add enhancements.

Details: OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift Virtualization v4.13 images.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-7374

A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster.

9.9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Affected products

Fixed 2 products

Product	Identifier	Version	Remediation
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:496bb7164546ea472905bc301a8a4ae9194ec0b300ae847c30bb5a775af5d546_amd64		—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:efceda8b0057ff086bad77398e617d31e2fbe8c051d865eb529fa5573d3ce4ad_arm64		—	Vendor Fix fix Workaround

Known not affected 16 products

Product	Version	Remediation
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:4df8ff903ba9d497fa31b868fde60e395c650afaad83abe0d962f9e67e759837_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:b35e9caa43d5be32a669641b6f1b9bb3469470d6fa5031f5d2b7ee76e1f5ad15_amd64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:d4a5efb5a48f189534a22b2d0629fb3b1efa0b4275ecd80d70115aeb5ac4b700_amd64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:f615a636ab94fffe11b2ea630f94e8a03d67d703db64200d34b0f2beb55b243e_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:6f00da8e5170fd7cf2086e4ee276327b3830891f22b57961ae15a4c1b736df18_amd64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:a09ea726150f34343ae6ae7e6c46f1644074bc7e465b22a7b669a2cf3c909ec7_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:300a50d81bd713402abd8c8d49d66f745afd7727c2b5f518a40835dc8d356ccb_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:5b5fd323fe20dced9941f1e94f4d5059912bf0ec8b37be24c14934e16bc2d4b5_amd64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:3666682aaebb95e4a3427c988f66ff4a53ebd46880f0878c38f92efdf7bb61dc_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:5e94348041cce2061b35f5db722bbf7344064b2587059146fda490cfa088949d_amd64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:6760420bed13672373bd657685e5ef58a0afe33083d0f20c5de41d6b660f9055_amd64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:94063473d116562e4b248ca04af3d5fb1ed728414675c75bb57d0af9d80a305b_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:346f31b1a107133d3a09cc4b5fee2280fab1f7492eb7de06ddd4a28f3736005c_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:494c0b69213b4a3e2a82a4d46bdee65793bb631d9d036d19bdf911be30e59d6f_amd64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:2b01a10d96ddc80027b162b82b5dd5f3244317db32761d9186d9b61640ce75fd_arm64	—	Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:e2d08bfdd903a982b5856269690cba90ff61b868fc2f27c931c810bb421d039b_amd64	—	Workaround

Threats

Impact Important

References

8 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:20886	self
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/security/cve/CVE-2026-7374	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-7374	self
https://bugzilla.redhat.com/show_bug.cgi?id=2463728	external
https://www.cve.org/CVERecord?id=CVE-2026-7374	external
https://nvd.nist.gov/vuln/detail/CVE-2026-7374	external

Acknowledgments

Red Hat Sarah Bennert Stoyan Nikolov

JSON

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          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2026-7374",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
      },
      "discovery_date": "2026-04-22T07:20:25+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:4df8ff903ba9d497fa31b868fde60e395c650afaad83abe0d962f9e67e759837_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:b35e9caa43d5be32a669641b6f1b9bb3469470d6fa5031f5d2b7ee76e1f5ad15_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:d4a5efb5a48f189534a22b2d0629fb3b1efa0b4275ecd80d70115aeb5ac4b700_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:f615a636ab94fffe11b2ea630f94e8a03d67d703db64200d34b0f2beb55b243e_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:6f00da8e5170fd7cf2086e4ee276327b3830891f22b57961ae15a4c1b736df18_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:a09ea726150f34343ae6ae7e6c46f1644074bc7e465b22a7b669a2cf3c909ec7_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:300a50d81bd713402abd8c8d49d66f745afd7727c2b5f518a40835dc8d356ccb_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:5b5fd323fe20dced9941f1e94f4d5059912bf0ec8b37be24c14934e16bc2d4b5_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:3666682aaebb95e4a3427c988f66ff4a53ebd46880f0878c38f92efdf7bb61dc_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:5e94348041cce2061b35f5db722bbf7344064b2587059146fda490cfa088949d_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:6760420bed13672373bd657685e5ef58a0afe33083d0f20c5de41d6b660f9055_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:94063473d116562e4b248ca04af3d5fb1ed728414675c75bb57d0af9d80a305b_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:346f31b1a107133d3a09cc4b5fee2280fab1f7492eb7de06ddd4a28f3736005c_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:494c0b69213b4a3e2a82a4d46bdee65793bb631d9d036d19bdf911be30e59d6f_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:2b01a10d96ddc80027b162b82b5dd5f3244317db32761d9186d9b61640ce75fd_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:e2d08bfdd903a982b5856269690cba90ff61b868fc2f27c931c810bb421d039b_amd64"
          ]
        }
      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2463728"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in KubeVirt\u0027s virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host\u0027s container runtime (CRI-O) socket, an attacker can hijack virt-handler\u0027s privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kubevirt: KubeVirt virt-handler: Privilege escalation and node compromise via symlink following vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important privilege escalation flaw in KubeVirt\u0027s virt-handler component. An authenticated OpenShift user with edit permissions in a single namespace can exploit improper symlink validation to hijack virt-handler\u0027s privileged connection. This allows access to any Unix socket on the host, leading to potential full control of the node and the entire cluster.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:496bb7164546ea472905bc301a8a4ae9194ec0b300ae847c30bb5a775af5d546_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:efceda8b0057ff086bad77398e617d31e2fbe8c051d865eb529fa5573d3ce4ad_arm64"
        ],
        "known_not_affected": [
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:4df8ff903ba9d497fa31b868fde60e395c650afaad83abe0d962f9e67e759837_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:b35e9caa43d5be32a669641b6f1b9bb3469470d6fa5031f5d2b7ee76e1f5ad15_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:d4a5efb5a48f189534a22b2d0629fb3b1efa0b4275ecd80d70115aeb5ac4b700_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:f615a636ab94fffe11b2ea630f94e8a03d67d703db64200d34b0f2beb55b243e_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:6f00da8e5170fd7cf2086e4ee276327b3830891f22b57961ae15a4c1b736df18_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:a09ea726150f34343ae6ae7e6c46f1644074bc7e465b22a7b669a2cf3c909ec7_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:300a50d81bd713402abd8c8d49d66f745afd7727c2b5f518a40835dc8d356ccb_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:5b5fd323fe20dced9941f1e94f4d5059912bf0ec8b37be24c14934e16bc2d4b5_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:3666682aaebb95e4a3427c988f66ff4a53ebd46880f0878c38f92efdf7bb61dc_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:5e94348041cce2061b35f5db722bbf7344064b2587059146fda490cfa088949d_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:6760420bed13672373bd657685e5ef58a0afe33083d0f20c5de41d6b660f9055_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:94063473d116562e4b248ca04af3d5fb1ed728414675c75bb57d0af9d80a305b_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:346f31b1a107133d3a09cc4b5fee2280fab1f7492eb7de06ddd4a28f3736005c_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:494c0b69213b4a3e2a82a4d46bdee65793bb631d9d036d19bdf911be30e59d6f_amd64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:2b01a10d96ddc80027b162b82b5dd5f3244317db32761d9186d9b61640ce75fd_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:e2d08bfdd903a982b5856269690cba90ff61b868fc2f27c931c810bb421d039b_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-7374"
        },
        {
          "category": "external",
          "summary": "RHBZ#2463728",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463728"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-7374",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-7374"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-7374",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7374"
        }
      ],
      "release_date": "2026-05-26T12:30:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-26T11:33:33+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:496bb7164546ea472905bc301a8a4ae9194ec0b300ae847c30bb5a775af5d546_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:efceda8b0057ff086bad77398e617d31e2fbe8c051d865eb529fa5573d3ce4ad_arm64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:20886"
        },
        {
          "category": "workaround",
          "details": "Update cluster RBAC to not allow exec into virt-launcher pods.",
          "product_ids": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:4df8ff903ba9d497fa31b868fde60e395c650afaad83abe0d962f9e67e759837_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:b35e9caa43d5be32a669641b6f1b9bb3469470d6fa5031f5d2b7ee76e1f5ad15_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:d4a5efb5a48f189534a22b2d0629fb3b1efa0b4275ecd80d70115aeb5ac4b700_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:f615a636ab94fffe11b2ea630f94e8a03d67d703db64200d34b0f2beb55b243e_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:6f00da8e5170fd7cf2086e4ee276327b3830891f22b57961ae15a4c1b736df18_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:a09ea726150f34343ae6ae7e6c46f1644074bc7e465b22a7b669a2cf3c909ec7_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:300a50d81bd713402abd8c8d49d66f745afd7727c2b5f518a40835dc8d356ccb_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:5b5fd323fe20dced9941f1e94f4d5059912bf0ec8b37be24c14934e16bc2d4b5_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:3666682aaebb95e4a3427c988f66ff4a53ebd46880f0878c38f92efdf7bb61dc_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:5e94348041cce2061b35f5db722bbf7344064b2587059146fda490cfa088949d_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:6760420bed13672373bd657685e5ef58a0afe33083d0f20c5de41d6b660f9055_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:94063473d116562e4b248ca04af3d5fb1ed728414675c75bb57d0af9d80a305b_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:496bb7164546ea472905bc301a8a4ae9194ec0b300ae847c30bb5a775af5d546_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:efceda8b0057ff086bad77398e617d31e2fbe8c051d865eb529fa5573d3ce4ad_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:346f31b1a107133d3a09cc4b5fee2280fab1f7492eb7de06ddd4a28f3736005c_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:494c0b69213b4a3e2a82a4d46bdee65793bb631d9d036d19bdf911be30e59d6f_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:2b01a10d96ddc80027b162b82b5dd5f3244317db32761d9186d9b61640ce75fd_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:e2d08bfdd903a982b5856269690cba90ff61b868fc2f27c931c810bb421d039b_amd64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:4df8ff903ba9d497fa31b868fde60e395c650afaad83abe0d962f9e67e759837_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/libguestfs-tools-rhel9@sha256:b35e9caa43d5be32a669641b6f1b9bb3469470d6fa5031f5d2b7ee76e1f5ad15_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:d4a5efb5a48f189534a22b2d0629fb3b1efa0b4275ecd80d70115aeb5ac4b700_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-api-rhel9@sha256:f615a636ab94fffe11b2ea630f94e8a03d67d703db64200d34b0f2beb55b243e_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:6f00da8e5170fd7cf2086e4ee276327b3830891f22b57961ae15a4c1b736df18_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-artifacts-server-rhel9@sha256:a09ea726150f34343ae6ae7e6c46f1644074bc7e465b22a7b669a2cf3c909ec7_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-controller-rhel9@sha256:300a50d81bd713402abd8c8d49d66f745afd7727c2b5f518a40835dc8d356ccb_arm64",
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            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:3666682aaebb95e4a3427c988f66ff4a53ebd46880f0878c38f92efdf7bb61dc_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportproxy-rhel9@sha256:5e94348041cce2061b35f5db722bbf7344064b2587059146fda490cfa088949d_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:6760420bed13672373bd657685e5ef58a0afe33083d0f20c5de41d6b660f9055_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-exportserver-rhel9@sha256:94063473d116562e4b248ca04af3d5fb1ed728414675c75bb57d0af9d80a305b_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:496bb7164546ea472905bc301a8a4ae9194ec0b300ae847c30bb5a775af5d546_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-handler-rhel9@sha256:efceda8b0057ff086bad77398e617d31e2fbe8c051d865eb529fa5573d3ce4ad_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:346f31b1a107133d3a09cc4b5fee2280fab1f7492eb7de06ddd4a28f3736005c_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-launcher-rhel9@sha256:494c0b69213b4a3e2a82a4d46bdee65793bb631d9d036d19bdf911be30e59d6f_amd64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:2b01a10d96ddc80027b162b82b5dd5f3244317db32761d9186d9b61640ce75fd_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/virt-operator-rhel9@sha256:e2d08bfdd903a982b5856269690cba90ff61b868fc2f27c931c810bb421d039b_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kubevirt: KubeVirt virt-handler: Privilege escalation and node compromise via symlink following vulnerability"
    }
  ]
}

CVE-2026-7374 (GCVE-0-2026-7374)

Vulnerability from cvelistv5 – Published: 2026-05-26 13:14 – Updated: 2026-05-27 07:02

Title

Kubevirt: kubevirt virt-handler: privilege escalation and node compromise via symlink following vulnerability

Summary

Severity

9.9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

redhat

References

11 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:20720	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20736	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20763	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20782	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20825	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20866	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20886	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20890	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20975	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-7374	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2463728	issue-trackingx_refsource_REDHAT

Impacted products

9 products

Vendor	Product	Version
Red Hat	Red Hat Container Native Virtualization 4.12	Unaffected: 1779375376 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.12::el8
Red Hat	Red Hat Container Native Virtualization 4.13	Unaffected: 1778999881 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.13::el9
Red Hat	Red Hat Container Native Virtualization 4.14	Unaffected: 1779321599 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.14::el9
Red Hat	Red Hat Container Native Virtualization 4.15	Unaffected: 1778859977 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.15::el9
Red Hat	Red Hat Container Native Virtualization 4.16	Unaffected: 1778861274 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.16::el9
Red Hat	Red Hat Container Native Virtualization 4.17	Unaffected: 1779174925 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.17::el9
Red Hat	Red Hat Container Native Virtualization 4.18	Unaffected: 1778887155 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.18::el9
Red Hat	Red Hat Container Native Virtualization 4.2	Unaffected: 1779288737 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.20::el9
Red Hat	Red Hat Container Native Virtualization 4.21	Unaffected: 1779420069 , < * (rpm) cpe:/a:redhat:container_native_virtualization:4.21::el9

Date Public

2026-05-26 12:30

Credits

This issue was discovered by Sarah Bennert (Red Hat) and Stoyan Nikolov (Red Hat).

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2026:20886

CVE-2026-7374 (GCVE-0-2026-7374)

Tags

Sightings

Nomenclature