CVE-2026-7374: Improper Link Resolution Before File Access ('Link Following') in Red Hat Red Hat Container Native Virtualization 4.12
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.
AI Analysis
Technical Summary
This advisory concerns a security vulnerability identified as CVE-2026-7374 in Red Hat OpenShift Virtualization v4.18 images. The vulnerability is associated with CWE-59 and has a high severity rating with a CVSS vector indicating network attack vector, low attack complexity, required privileges, no user interaction, and impacts confidentiality, integrity, and availability. Red Hat has released updated OpenShift Virtualization v4.18 images containing fixes and enhancements. The vendor advisory does not specify detailed technical exploit mechanisms or fixes but directs users to apply the updated images after installing all previous errata.
Potential Impact
The vulnerability impacts confidentiality, integrity, and availability of systems running affected OpenShift Virtualization v4.18 images. Exploitation could allow an attacker with network access and low complexity to cause significant compromise. However, there are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated OpenShift Virtualization v4.18 images that address this vulnerability. Users should apply these updates after ensuring all previously released relevant errata have been applied. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258. No additional mitigations are specified in the advisory.
CVE-2026-7374: Improper Link Resolution Before File Access ('Link Following') in Red Hat Red Hat Container Native Virtualization 4.12
Description
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.
CVSS v3.1
Score 9.9critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory concerns a security vulnerability identified as CVE-2026-7374 in Red Hat OpenShift Virtualization v4.18 images. The vulnerability is associated with CWE-59 and has a high severity rating with a CVSS vector indicating network attack vector, low attack complexity, required privileges, no user interaction, and impacts confidentiality, integrity, and availability. Red Hat has released updated OpenShift Virtualization v4.18 images containing fixes and enhancements. The vendor advisory does not specify detailed technical exploit mechanisms or fixes but directs users to apply the updated images after installing all previous errata.
Potential Impact
The vulnerability impacts confidentiality, integrity, and availability of systems running affected OpenShift Virtualization v4.18 images. Exploitation could allow an attacker with network access and low complexity to cause significant compromise. However, there are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated OpenShift Virtualization v4.18 images that address this vulnerability. Users should apply these updates after ensuring all previously released relevant errata have been applied. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258. No additional mitigations are specified in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:20975
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a175eefe29bf47b50ede433
Added to database: 05/27/2026, 21:15:27 UTC
Last enriched: 07/26/2026, 01:58:34 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 86
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