CVE-2026-13622

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

A symlink following vulnerability was found in KubeVirt's virt-handler migration proxy. During live migration, virt-handler dials Unix sockets inside the target virt-launcher pod via /proc//root/ paths using net.Dial() without symlink protection. These socket paths reside in qemu-owned directories writable by the virt-launcher user. An attacker with namespace edit and pods/exec permissions can replace a migration proxy socket with a symlink to the host CRI-O socket. Because virt-handler runs as root in the host mount namespace, absolute symlink targets resolve against the host filesystem, and the bidirectional io.Copy proxy relays attacker-controlled bytes to the container runtime, enabling full node compromise.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 16, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
Patch available. Sources: redhat.
redhat

2494142 – (CVE-2026-13622) CVE-2026-13622 kubevirt: virt-handler-rhel9: kubevirt: virt-handler migration proxy follows symlinks allowing container escape to host

https://bugzilla.redhat.com/show_bug.cgi?id=2494142
redhat Patch Available

CVE-2026-13622 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-13622

Vendor Advisories for CVE-2026-13622(12)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatcontainer-native-virtualization/virt-handler:17858377222026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17860300712026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17863342152026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17858297012026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17863465962026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17863096242026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17863476562026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17863485292026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17861300682026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17858313342026-08-11redhat
redhatcontainer-native-virtualization/virt-handler-rhel9:17851403362026-08-06redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 51× in last 7d / 61× 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.

  1. 2026-08-20 23:52 UTCEG score recompute
  2. 2026-08-20 23:52 UTCVendor advisory
  3. 2026-08-20 23:52 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 12:05 UTCVendor advisory
  6. 2026-08-20 12:05 UTCGHSA enrichment
  7. 2026-08-20 00:12 UTCEG score recompute
  8. 2026-08-20 00:12 UTCVendor advisory
  9. 2026-08-20 00:12 UTCGHSA enrichment
  10. 2026-08-19 17:03 UTCEPSS rescore
  11. 2026-08-19 12:24 UTCVendor advisory
  12. 2026-08-19 12:24 UTCGHSA enrichment
  13. 2026-08-19 00:35 UTCEG score recompute
  14. 2026-08-19 00:35 UTCVendor advisory
  15. 2026-08-19 00:34 UTCGHSA enrichment
  16. 2026-08-18 13:48 UTCEPSS rescore
  17. 2026-08-18 12:45 UTCVendor advisory
  18. 2026-08-18 12:44 UTCGHSA enrichment
  19. 2026-08-18 00:56 UTCEG score recompute
  20. 2026-08-18 00:56 UTCVendor advisory
  21. 2026-08-18 00:55 UTCGHSA enrichment
  22. 2026-08-17 13:07 UTCVendor advisory
  23. 2026-08-17 13:07 UTCGHSA enrichment
  24. 2026-08-17 01:20 UTCEG score recompute
  25. 2026-08-17 01:20 UTCVendor advisory
Show 36 more
  1. 2026-08-17 01:20 UTCGHSA enrichment
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 13:33 UTCEG score recompute
  4. 2026-08-16 13:33 UTCVendor advisory
  5. 2026-08-16 13:33 UTCGHSA enrichment
  6. 2026-08-16 13:12 UTCEG score recompute
  7. 2026-08-16 13:12 UTCGHSA enrichment
  8. 2026-08-16 06:39 UTCEG score recompute
  9. 2026-08-16 06:39 UTCVendor advisory
  10. 2026-08-16 06:39 UTCGHSA enrichment
  11. 2026-08-16 02:14 UTCEPSS rescore
  12. 2026-08-15 18:53 UTCVendor advisory
  13. 2026-08-15 18:53 UTCGHSA enrichment
  14. 2026-08-15 07:06 UTCEG score recompute
  15. 2026-08-15 07:06 UTCVendor advisory
  16. 2026-08-15 07:06 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-14 19:18 UTCVendor advisory
  19. 2026-08-14 19:18 UTCGHSA enrichment
  20. 2026-08-14 11:36 UTCEG score recompute
  21. 2026-08-14 11:36 UTCGHSA enrichment
  22. 2026-08-14 10:24 UTCEG score recompute
  23. 2026-08-14 10:24 UTCGHSA enrichment
  24. 2026-08-14 08:30 UTCGHSA enrichment
  25. 2026-08-14 08:10 UTCEG score recompute
  26. 2026-08-14 08:10 UTCGHSA enrichment
  27. 2026-08-13 22:00 UTCEPSS rescore
  28. 2026-08-13 20:23 UTCEG score recompute
  29. 2026-08-13 20:23 UTCGHSA enrichment
  30. 2026-08-13 19:47 UTCEG score recompute
  31. 2026-08-13 19:47 UTCGHSA enrichment
  32. 2026-08-13 09:07 UTCEG score recompute
  33. 2026-08-13 09:07 UTCGHSA enrichment
  34. 2026-08-12 21:20 UTCEG score recompute
  35. 2026-08-12 21:01 UTCEG score recompute
  36. 2026-08-12 21:00 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13622?
CVE-2026-13622 is a high vulnerability published on August 12, 2026. A symlink following vulnerability was found in KubeVirt's virt-handler migration proxy. During live migration, virt-handler dials Unix sockets inside the target virt-launcher pod via /proc/<pid>/root/ paths using net.Dial() without symlink protection. These socket paths reside in qemu-owned…
When was CVE-2026-13622 disclosed?
CVE-2026-13622 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13622 actively exploited?
CVE-2026-13622 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.5% of all scored CVEs.
What is the CVSS score of CVE-2026-13622?
CVE-2026-13622 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-13622?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13622, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-13622

Explore →

Is Your Infrastructure Affected by CVE-2026-13622?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs