A flaw was found in KubeVirt's migration proxy. When spec.configuration.migrations.disableTLS is set to true on the KubeVirt custom resource, the target virt-handler binds a plain TCP listener on all interfaces (0.0.0.0/::) on a random port with no authentication, peer allow-list, or handshake token. This listener proxies directly into the target virt-launcher's virtqemud control socket. An attacker with a running pod on the cluster network can connect to this listener and issue unfiltered libvirt RPC commands against another tenant's virtual machine, including reading VM memory and configuration, modifying VM state via QMP, or destroying the VM. The bind address is unconditionally 0.0.0.0 — configuring a dedicated migration network via migrations.network only changes the advertised migration IP, not the listener bind address, so the port remains reachable on the pod network even when a dedicated migration network is configured. The API documentation describes disableTLS as removing "the additional layer of live migration encryption" without disclosing that it also removes all mutual authentication.
CVE-2026-13325
Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. a secondary CVSS source baseline 8.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.5
- EG Score
- 8.5(high)
- EPSS
- 6.8%
- KEV
- Not listed
Published
June 26, 2026
Last Modified
July 6, 2026
Advisory Details (2)
Auto-updated Jun 26, 20262493378 – (CVE-2026-13325) CVE-2026-13325 virt-handler-rhel9: kubevirt: kubevirt: DisableTLS migration setting removes authentication, exposing unauthenticated virtqemud proxy on all interfaces
https://bugzilla.redhat.com/show_bug.cgi?id=2493378Vendor Advisories for CVE-2026-13325(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2026-13325Microsoft Security Response Center (MSRC)High
Virt-handler-rhel9: kubevirt: kubevirt: disabletls migration setting removes authentication, exposing unauthenticated virtqemud proxy on all interfaces
- GHSA-r578-whjq-mcfvGitHub Security AdvisoriesHigh
A flaw was found in KubeVirt's migration proxy. When spec.configuration.migrations.disableTLS is...
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 37× in last 7d / 57× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 22:24 UTCEG score recompute
- 2026-07-06 22:24 UTCGHSA enrichment
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 10:29 UTCEG score recompute
- 2026-07-06 10:29 UTCGHSA enrichment
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 22:32 UTCEG score recompute
- 2026-07-05 22:32 UTCGHSA enrichment
- 2026-07-05 10:37 UTCEG score recompute
- 2026-07-05 10:36 UTCGHSA enrichment
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 22:41 UTCEG score recompute
- 2026-07-04 22:41 UTCGHSA enrichment
- 2026-07-04 10:45 UTCEG score recompute
- 2026-07-04 10:45 UTCGHSA enrichment
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-03 22:46 UTCEG score recompute
- 2026-07-03 22:46 UTCGHSA enrichment
- 2026-07-03 10:50 UTCEG score recompute
- 2026-07-03 10:50 UTCGHSA enrichment
- 2026-07-02 22:54 UTCEG score recompute
- 2026-07-02 22:54 UTCGHSA enrichment
- 2026-07-02 10:58 UTCEG score recompute
- 2026-07-02 10:58 UTCGHSA enrichment
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- 2026-07-02 10:56 UTCGHSA enrichment
- 2026-07-01 22:53 UTCEG score recompute
- 2026-07-01 22:53 UTCGHSA enrichment
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 10:58 UTCEG score recompute
- 2026-07-01 10:58 UTCGHSA enrichment
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 23:03 UTCEG score recompute
- 2026-06-30 23:02 UTCGHSA enrichment
- 2026-06-30 11:07 UTCEG score recompute
- 2026-06-30 11:06 UTCGHSA enrichment
- 2026-06-29 23:08 UTCEG score recompute
- 2026-06-29 23:07 UTCGHSA enrichment
- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-29 11:12 UTCEG score recompute
- 2026-06-29 11:12 UTCGHSA enrichment
- 2026-06-28 23:17 UTCEG score recompute
- 2026-06-28 23:17 UTCGHSA enrichment
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 11:21 UTCEG score recompute
- 2026-06-28 11:21 UTCGHSA enrichment
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-27 23:25 UTCEG score recompute
- 2026-06-27 23:25 UTCGHSA enrichment
- 2026-06-27 11:30 UTCEG score recompute
- 2026-06-27 11:30 UTCGHSA enrichment
- 2026-06-26 23:34 UTCEG score recompute
- 2026-06-26 23:34 UTCGHSA enrichment
- 2026-06-26 11:39 UTCEG score recompute
- 2026-06-26 11:39 UTCNVD updatefirst tracked
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Frequently asked(5)
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