CVE Explorer
CVE-2026-6383
A flaw was found in KubeVirt's Role-Based Access Control (RBAC) evaluation logic. The authorization mechanism improperly truncates subresource names, leading to incorrect permission evaluations. This allows authenticated users with specific custom roles to gain unauthorized access to subresources, potentially disclosing sensitive information or performing actions they are not permitted to do. Additionally, legitimate users may be denied access to resources.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:container_native_virtualization:4"],"defaultStatus":"affected","packageName":"kubevirt","product":"Red Hat OpenShift Virtualization 4","vendor":"Red Hat"}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:516d5a90fa340be94360c304f3b0649616e59e1b9f00f9f22695ce7950f98fc0 · sha256:8bfb9a2f1e59b35b… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:516d5a90fa340be94360c304f3b0649616e59e1b9f00f9f22695ce7950f98fc0 · sha256:8bfb9a2f1e59b35b… · /containers/cna/metrics/1/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-863","description":"Incorrect Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:516d5a90fa340be94360c304f3b0649616e59e1b9f00f9f22695ce7950f98fc0 · sha256:8bfb9a2f1e59b35b… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-6383"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:516d5a90fa340be94360c304f3b0649616e59e1b9f00f9f22695ce7950f98fc0 · sha256:8bfb9a2f1e59b35b… · /containers/cna/references/0
{"name":"RHBZ#2458741","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2458741"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:516d5a90fa340be94360c304f3b0649616e59e1b9f00f9f22695ce7950f98fc0 · sha256:8bfb9a2f1e59b35b… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.