3.8

CVE-2026-13322

Kubevirt: virt-handler-rhel9: kubevirt: unbounded virtio-serial readline in virt-handler causes oom denial of service

A flaw was found in KubeVirt's downward metrics virtio-serial server. The server reads guest requests using textproto.Reader.ReadLine(), which buffers input indefinitely until a newline character is received, with no length limit or read deadline. A user with access to a VM guest that has the downward metrics virtio-serial device configured can write a continuous byte stream to the device, causing unbounded memory allocation in the virt-handler process until it is OOM-killed.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Openshift Virtualization Version >= 4 <= 4.22.0
Kubevirt ≫ Kubevirt Version- SwPlatformkubernetes
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.09% 0.007
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 3.8 2 1.4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://access.redhat.com/security/cve/CVE-2026-13322
Vendor Advisory
Mitigation
https://bugzilla.redhat.com/show_bug.cgi?id=2492681
Vendor Advisory
Issue Tracking