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Advisory record · GHSA-6f2p-2qg2-qqch

KubeVirt downward metrics virtio-serial server vulnerable to unbounded memory consumption

CVSS 3.8 LowEPSS 0.0013 · 3rd percentile

Published by the GitHub Advisory Database at 26 Jun 2026, 00:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/kubevirt/kubevirtGo>=1.1.0-alpha.0, <=1.10.0-rc.0No fixed version yet
Identifiers
GHSA-6f2p-2qg2-qqch · CVE-2026-13322 · GO-2026-6912
Weakness (CWE)
CWE-770
Tags
Published
26 Jun 2026
Updated
5 Nov 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

KubeVirt's downward metrics virtio-serial server is vulnerable to unbounded memory consumption in the range 1.1.0-alpha.0 through 1.10.0-rc.0. A user with access to a VM guest that has the downward metrics virtio-serial device configured can send a continuous stream of bytes without a newline, causing virt-handler to allocate memory until it is killed by the out-of-memory killer. The source lists no fixed version.

Written 15 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
3.8 Low 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.0013, the 3rd percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 26 Jun 2026, 00:32 UTC Confirmed by GitHub Advisory Database
  2. 4 Nov 2026, 17:30 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.