CVE-2026-7374: Improper Link Resolution Before File Access ('Link Following')
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
CVE-2026-7374 is a vulnerability identified in Red Hat OpenShift Virtualization, affecting multiple versions from 4.12 to 4.21. The vulnerability is associated with CWE-59, which typically involves link following or symbolic link issues. Red Hat's security advisories for OpenShift Virtualization v4.18 and v4.21 include updated images with bug fixes and enhancements; however, these advisories do not explicitly state a fix for CVE-2026-7374. The advisories recommend applying all relevant previously released errata before updating to the new images. No active exploitation has been reported.
Potential Impact
The vulnerability is rated as high severity by Red Hat, indicating a significant security risk if exploited. However, there are no known exploits in the wild currently. The impact details are limited as the advisories do not specify exact consequences or attack vectors related to CVE-2026-7374. Given the CWE-59 classification, the issue may involve improper handling of symbolic links, potentially leading to unauthorized file access or privilege escalation within the OpenShift Virtualization environment.
Mitigation Recommendations
Red Hat advises users to ensure all previously released errata relevant to their systems are applied before updating to the latest OpenShift Virtualization images (v4.18 and v4.21). While the advisories include updated images with bug fixes and enhancements, they do not explicitly confirm a fix for CVE-2026-7374. Therefore, users should monitor Red Hat's official advisories for any future updates addressing this vulnerability directly. No additional mitigation steps are specified in the current advisories.
CVE-2026-7374: Improper Link Resolution Before File Access ('Link Following')
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
CVE-2026-7374 is a vulnerability identified in Red Hat OpenShift Virtualization, affecting multiple versions from 4.12 to 4.21. The vulnerability is associated with CWE-59, which typically involves link following or symbolic link issues. Red Hat's security advisories for OpenShift Virtualization v4.18 and v4.21 include updated images with bug fixes and enhancements; however, these advisories do not explicitly state a fix for CVE-2026-7374. The advisories recommend applying all relevant previously released errata before updating to the new images. No active exploitation has been reported.
Potential Impact
The vulnerability is rated as high severity by Red Hat, indicating a significant security risk if exploited. However, there are no known exploits in the wild currently. The impact details are limited as the advisories do not specify exact consequences or attack vectors related to CVE-2026-7374. Given the CWE-59 classification, the issue may involve improper handling of symbolic links, potentially leading to unauthorized file access or privilege escalation within the OpenShift Virtualization environment.
Mitigation Recommendations
Red Hat advises users to ensure all previously released errata relevant to their systems are applied before updating to the latest OpenShift Virtualization images (v4.18 and v4.21). While the advisories include updated images with bug fixes and enhancements, they do not explicitly confirm a fix for CVE-2026-7374. Therefore, users should monitor Red Hat's official advisories for any future updates addressing this vulnerability directly. No additional mitigation steps are specified in the current advisories.
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
- State
- PUBLISHED
Threat ID: 6a175eefe29bf47b50ede433
Added to database: 05/27/2026, 21:15:27 UTC
Last enriched: 08/17/2026, 21:56:31 UTC
Last updated: 09/13/2026, 10:01:33 UTC
Views: 117
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