CVEvulnerability
CVE-2026-13322
3.8 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-26
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 3.8 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
- Weaknesses
- CWE-770
Description
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.
Affected configurations
• redhat openshift virtualization (>= 4 <= 4.22.0)
• kubevirt kubevirt
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://access.redhat.com/security/cve/CVE-2026-13322 Mitigation, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492681 Issue Tracking, Vendor Advisory