{"id":"GHSA-6f2p-2qg2-qqch","revision":"30cce3a0f19c4ed3bffcc3a641ff2a40","records":[{"revision":"30cce3a0f19c4ed3bffcc3a641ff2a40","observedAt":"2026-11-04T18:05:41.076+00:00","statement":{"source":"osv","id":"GHSA-6f2p-2qg2-qqch","aliases":["CVE-2026-13322"],"title":"KubeVirt downward metrics virtio-serial server vulnerable to unbounded memory consumption","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.","state":0,"publishedAt":"2026-06-26T00:32:07+00:00","modifiedAt":"2026-11-04T17:30:04.822633+00:00","affected":[{"ecosystem":"Go","name":"github.com/kubevirt/kubevirt","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.1.0-alpha.0"},{"kind":"last_affected","version":"1.10.0-rc.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2026-13322","https://access.redhat.com/security/cve/CVE-2026-13322","https://bugzilla.redhat.com/show_bug.cgi?id=2492681","https://github.com/kubevirt/kubevirt","https://github.com/kubevirt/kubevirt/blob/e63503d2f3a166f79f0891f8e1c3450eb39f88ac/pkg/downwardmetrics/virtio-serial/server.go#L240-L251"],"sourceUrl":"https://github.com/advisories/GHSA-6f2p-2qg2-qqch","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-6f2p-2qg2-qqch","identifiers":["GHSA-6f2p-2qg2-qqch","CVE-2026-13322"]},"retained":false,"historicalAffected":[]}],"coverage":[]}