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%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(medium)
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

September 8, 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.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 37× in last 7d / 192× 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 247 total refreshes for this CVE.

  1. 2026-09-19 00:42 UTCEG score recompute
  2. 2026-09-19 00:42 UTCVendor advisory
  3. 2026-09-19 00:42 UTCGHSA enrichment
  4. 2026-09-18 19:27 UTCEPSS rescore
  5. 2026-09-18 12:54 UTCVendor advisory
  6. 2026-09-18 12:54 UTCGHSA enrichment
  7. 2026-09-18 00:31 UTCEG score recompute
  8. 2026-09-18 00:31 UTCVendor advisory
  9. 2026-09-18 00:31 UTCGHSA enrichment
  10. 2026-09-17 12:15 UTCVendor advisory
  11. 2026-09-17 12:15 UTCGHSA enrichment
  12. 2026-09-17 00:16 UTCEG score recompute
  13. 2026-09-17 00:16 UTCVendor advisory
  14. 2026-09-17 00:16 UTCGHSA enrichment
  15. 2026-09-16 10:49 UTCEG score recompute
  16. 2026-09-16 10:49 UTCVendor advisory
  17. 2026-09-16 10:49 UTCGHSA enrichment
  18. 2026-09-16 05:14 UTCEPSS rescore
  19. 2026-09-15 21:57 UTCVendor advisory
  20. 2026-09-15 21:57 UTCGHSA enrichment
  21. 2026-09-15 09:34 UTCEG score recompute
  22. 2026-09-15 09:34 UTCVendor advisory
  23. 2026-09-15 09:34 UTCGHSA enrichment
  24. 2026-09-14 21:47 UTCVendor advisory
  25. 2026-09-14 21:47 UTCGHSA enrichment
Show 75 more
  1. 2026-09-14 06:10 UTCVendor advisory
  2. 2026-09-14 06:10 UTCGHSA enrichment
  3. 2026-09-13 18:23 UTCEG score recompute
  4. 2026-09-13 18:23 UTCVendor advisory
  5. 2026-09-13 18:23 UTCGHSA enrichment
  6. 2026-09-13 16:46 UTCEPSS rescore
  7. 2026-09-13 06:36 UTCVendor advisory
  8. 2026-09-13 06:36 UTCGHSA enrichment
  9. 2026-09-12 18:49 UTCEG score recompute
  10. 2026-09-12 18:49 UTCVendor advisory
  11. 2026-09-12 18:49 UTCGHSA enrichment
  12. 2026-09-12 15:00 UTCEPSS rescore
  13. 2026-09-12 07:02 UTCEG score recompute
  14. 2026-09-12 07:02 UTCVendor advisory
  15. 2026-09-12 07:02 UTCGHSA enrichment
  16. 2026-09-11 19:14 UTCEG score recompute
  17. 2026-09-11 19:14 UTCVendor advisory
  18. 2026-09-11 19:14 UTCGHSA enrichment
  19. 2026-09-11 14:52 UTCEPSS rescore
  20. 2026-09-11 09:36 UTCEPSS rescore
  21. 2026-09-11 07:03 UTCVendor advisory
  22. 2026-09-11 07:03 UTCGHSA enrichment
  23. 2026-09-10 19:16 UTCEG score recompute
  24. 2026-09-10 19:16 UTCVendor advisory
  25. 2026-09-10 19:16 UTCGHSA enrichment
  26. 2026-09-10 09:34 UTCEPSS rescore
  27. 2026-09-10 07:29 UTCVendor advisory
  28. 2026-09-10 07:29 UTCGHSA enrichment
  29. 2026-09-09 19:41 UTCVendor advisory
  30. 2026-09-09 19:41 UTCGHSA enrichment
  31. 2026-09-09 07:53 UTCEG score recompute
  32. 2026-09-09 07:53 UTCVendor advisory
  33. 2026-09-09 07:53 UTCGHSA enrichment
  34. 2026-09-08 22:00 UTCEPSS rescore
  35. 2026-09-08 20:06 UTCVendor advisory
  36. 2026-09-08 20:06 UTCGHSA enrichment
  37. 2026-09-08 18:18 UTCEG score recompute
  38. 2026-09-08 18:18 UTCVendor advisory
  39. 2026-09-08 18:18 UTCGHSA enrichment
  40. 2026-09-08 17:08 UTCVendor advisory
  41. 2026-09-08 17:08 UTCGHSA enrichment
  42. 2026-09-08 15:24 UTCEG score recompute
  43. 2026-09-08 15:24 UTCVendor advisory
  44. 2026-09-08 15:23 UTCGHSA enrichment
  45. 2026-09-07 22:33 UTCEG score recompute
  46. 2026-09-07 22:33 UTCVendor advisory
  47. 2026-09-07 22:33 UTCGHSA enrichment
  48. 2026-09-07 21:19 UTCVendor advisory
  49. 2026-09-07 21:19 UTCGHSA enrichment
  50. 2026-09-07 20:54 UTCVendor advisory
  51. 2026-09-07 20:54 UTCGHSA enrichment
  52. 2026-09-07 16:40 UTCEG score recompute
  53. 2026-09-07 16:40 UTCVendor advisory
  54. 2026-09-07 16:40 UTCGHSA enrichment
  55. 2026-09-07 16:01 UTCEPSS rescore
  56. 2026-09-06 21:14 UTCVendor advisory
  57. 2026-09-06 21:14 UTCGHSA enrichment
  58. 2026-09-06 20:44 UTCVendor advisory
  59. 2026-09-06 20:44 UTCGHSA enrichment
  60. 2026-09-06 16:17 UTCEG score recompute
  61. 2026-09-06 16:17 UTCVendor advisory
  62. 2026-09-06 16:17 UTCGHSA enrichment
  63. 2026-09-06 13:47 UTCEPSS rescore
  64. 2026-09-06 04:27 UTCVendor advisory
  65. 2026-09-06 04:27 UTCGHSA enrichment
  66. 2026-09-05 16:41 UTCVendor advisory
  67. 2026-09-05 16:40 UTCGHSA enrichment
  68. 2026-09-05 16:26 UTCEG score recompute
  69. 2026-09-05 16:26 UTCVendor advisory
  70. 2026-09-05 16:26 UTCGHSA enrichment
  71. 2026-09-05 12:54 UTCVendor advisory
  72. 2026-09-05 12:54 UTCGHSA enrichment
  73. 2026-09-05 01:01 UTCEG score recompute
  74. 2026-09-05 01:01 UTCVendor advisory
  75. 2026-09-05 01:01 UTCGHSA enrichment

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 September 8, 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 94.6% 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

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