Insufficient Privileges in Insights Runtime Extractor Affects Red Hat OpenShift
CVE-2026-104795

8.8HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Openshift Container Platform 4
Vendor
CVE Published:
14 October 2026

What is CVE-2026-104795?

The Insights Runtime Extractor in Red Hat OpenShift contains a critical vulnerability that allows an attacker to escalate privileges on the node by exploiting the DaemonSet's scanning mechanism. When the extractor forks a child process to scan its container, it improperly drops privileges by only setting the effective user ID while retaining the real and saved user IDs as root. This creates a loophole, enabling potentially malicious binaries within the container to invoke setuid(0), thus regaining full root access. As a result, an attacker could manipulate this process to execute arbitrary code within the host user namespace, leading to a complete compromise of the node. This vulnerability primarily affects users who can create pods with names matching specific patterns, which could lead to significant security breaches in multi-tenant environments.

References

https://access.redhat.com/security/cve/CVE-2026-104795
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2543917
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.