CVE Explorer
CVE-2026-13434
A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or sanitization. The only admission check rejects empty strings; no DNS-1123 format validation, JSON detection, or special character rejection is performed. When the ExternalNetResourceInjection Beta feature ga
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":"container-native-virtualization/virt-controller-rhel9","product":"Red Hat OpenShift Virtualization 4","vendor":"Red Hat"}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:0df1c0f0b9b2f475f82fa9b9cacad0eda1c21c5d35ccb77923c0bd0e03d686ee · sha256:0435ee39f29cdcfe… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:0df1c0f0b9b2f475f82fa9b9cacad0eda1c21c5d35ccb77923c0bd0e03d686ee · sha256:0435ee39f29cdcfe… · /containers/cna/metrics/1/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-20","description":"Improper Input Validation","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:0df1c0f0b9b2f475f82fa9b9cacad0eda1c21c5d35ccb77923c0bd0e03d686ee · sha256:0435ee39f29cdcfe… · /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-2026-13434"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:0df1c0f0b9b2f475f82fa9b9cacad0eda1c21c5d35ccb77923c0bd0e03d686ee · sha256:0435ee39f29cdcfe… · /containers/cna/references/0
{"name":"RHBZ#2493576","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2493576"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:0df1c0f0b9b2f475f82fa9b9cacad0eda1c21c5d35ccb77923c0bd0e03d686ee · sha256:0435ee39f29cdcfe… · /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.