CVE-2026-13622

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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: 0.2%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 12, 2026

Last Modified

September 21, 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(13)

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 / EcosystemFix (by version range) / 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 29× in last 7d / 171× 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.

Showing the most recent 100 of 323 total refreshes for this CVE.

  1. 2026-10-05 14:43 UTCEG score recompute
  2. 2026-10-05 14:43 UTCVendor advisory
  3. 2026-10-05 14:43 UTCGHSA enrichment
  4. 2026-10-04 23:21 UTCEPSS rescore
  5. 2026-10-04 22:27 UTCVendor advisory
  6. 2026-10-04 22:27 UTCGHSA enrichment
  7. 2026-10-04 07:42 UTCVendor advisory
  8. 2026-10-04 07:42 UTCGHSA enrichment
  9. 2026-10-03 19:55 UTCEG score recompute
  10. 2026-10-03 19:55 UTCVendor advisory
  11. 2026-10-03 19:55 UTCGHSA enrichment
  12. 2026-10-03 14:25 UTCEPSS rescore
  13. 2026-10-02 21:57 UTCEG score recompute
  14. 2026-10-02 21:57 UTCVendor advisory
  15. 2026-10-02 21:57 UTCGHSA enrichment
  16. 2026-10-02 08:17 UTCEG score recompute
  17. 2026-10-02 08:17 UTCVendor advisory
  18. 2026-10-02 08:17 UTCGHSA enrichment
  19. 2026-10-01 19:49 UTCEPSS rescore
  20. 2026-10-01 09:56 UTCVendor advisory
  21. 2026-10-01 09:56 UTCGHSA enrichment
  22. 2026-09-30 21:52 UTCEG score recompute
  23. 2026-09-30 21:52 UTCVendor advisory
  24. 2026-09-30 21:52 UTCGHSA enrichment
  25. 2026-09-30 15:02 UTCEPSS rescore
Show 75 more
  1. 2026-09-29 15:20 UTCEPSS rescore
  2. 2026-09-29 04:25 UTCEG score recompute
  3. 2026-09-29 04:25 UTCVendor advisory
  4. 2026-09-29 04:25 UTCGHSA enrichment
  5. 2026-09-28 13:51 UTCEPSS rescore
  6. 2026-09-28 13:02 UTCVendor advisory
  7. 2026-09-28 13:02 UTCGHSA enrichment
  8. 2026-09-28 01:15 UTCEG score recompute
  9. 2026-09-28 01:15 UTCVendor advisory
  10. 2026-09-28 01:15 UTCGHSA enrichment
  11. 2026-09-27 13:47 UTCEPSS rescore
  12. 2026-09-27 09:52 UTCEG score recompute
  13. 2026-09-27 09:52 UTCVendor advisory
  14. 2026-09-27 09:51 UTCGHSA enrichment
  15. 2026-09-26 15:58 UTCEPSS rescore
  16. 2026-09-25 03:39 UTCEG score recompute
  17. 2026-09-25 03:39 UTCVendor advisory
  18. 2026-09-25 03:39 UTCGHSA enrichment
  19. 2026-09-24 08:40 UTCVendor advisory
  20. 2026-09-24 08:40 UTCGHSA enrichment
  21. 2026-09-23 20:53 UTCEG score recompute
  22. 2026-09-23 20:53 UTCVendor advisory
  23. 2026-09-23 20:53 UTCGHSA enrichment
  24. 2026-09-23 13:47 UTCEPSS rescore
  25. 2026-09-23 08:52 UTCVendor advisory
  26. 2026-09-23 08:52 UTCGHSA enrichment
  27. 2026-09-22 21:04 UTCEG score recompute
  28. 2026-09-22 21:04 UTCVendor advisory
  29. 2026-09-22 21:04 UTCGHSA enrichment
  30. 2026-09-22 05:22 UTCEG score recompute
  31. 2026-09-22 05:22 UTCVendor advisory
  32. 2026-09-22 05:22 UTCGHSA enrichment
  33. 2026-09-21 17:31 UTCEG score recompute
  34. 2026-09-21 17:31 UTCVendor advisory
  35. 2026-09-21 17:31 UTCGHSA enrichment
  36. 2026-09-21 16:55 UTCEG score recompute
  37. 2026-09-21 16:55 UTCVendor advisory
  38. 2026-09-21 16:54 UTCGHSA enrichment
  39. 2026-09-21 12:23 UTCVendor advisory
  40. 2026-09-21 12:23 UTCGHSA enrichment
  41. 2026-09-21 00:36 UTCEG score recompute
  42. 2026-09-21 00:36 UTCVendor advisory
  43. 2026-09-21 00:36 UTCGHSA enrichment
  44. 2026-09-20 20:15 UTCEPSS rescore
  45. 2026-09-20 12:46 UTCVendor advisory
  46. 2026-09-20 12:46 UTCGHSA enrichment
  47. 2026-09-20 00:17 UTCEG score recompute
  48. 2026-09-20 00:17 UTCVendor advisory
  49. 2026-09-20 00:17 UTCGHSA enrichment
  50. 2026-09-19 12:30 UTCVendor advisory
  51. 2026-09-19 12:30 UTCGHSA enrichment
  52. 2026-09-19 00:42 UTCEG score recompute
  53. 2026-09-19 00:42 UTCVendor advisory
  54. 2026-09-19 00:42 UTCGHSA enrichment
  55. 2026-09-18 19:27 UTCEPSS rescore
  56. 2026-09-18 12:54 UTCVendor advisory
  57. 2026-09-18 12:54 UTCGHSA enrichment
  58. 2026-09-18 00:31 UTCEG score recompute
  59. 2026-09-18 00:31 UTCVendor advisory
  60. 2026-09-18 00:31 UTCGHSA enrichment
  61. 2026-09-17 12:15 UTCVendor advisory
  62. 2026-09-17 12:15 UTCGHSA enrichment
  63. 2026-09-17 00:16 UTCEG score recompute
  64. 2026-09-17 00:16 UTCVendor advisory
  65. 2026-09-17 00:16 UTCGHSA enrichment
  66. 2026-09-16 10:49 UTCEG score recompute
  67. 2026-09-16 10:49 UTCVendor advisory
  68. 2026-09-16 10:49 UTCGHSA enrichment
  69. 2026-09-16 05:14 UTCEPSS rescore
  70. 2026-09-15 21:57 UTCVendor advisory
  71. 2026-09-15 21:57 UTCGHSA enrichment
  72. 2026-09-15 09:34 UTCEG score recompute
  73. 2026-09-15 09:34 UTCVendor advisory
  74. 2026-09-15 09:34 UTCGHSA enrichment
  75. 2026-09-14 21:47 UTCVendor advisory

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redhat:RHSA-2026:51031 · redhat:RHSA-2026:53728 · redhat:RHSA-2026:53655

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 on August 12, 2026, with the most recent update on September 21, 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 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-13622?
CVE-2026-13622 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-13622?
A fix for CVE-2026-13622 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-13622 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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