CVE-2026-9804

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. a secondary CVSS source baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.7Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data.

CVSS v3
7.7
EG Score
7.7(medium)
EPSS
40.4%
KEV
Not listed

Published

May 28, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jun 5, 2026
Patch available. Sources: redhat.
redhat

2482487 – (CVE-2026-9804) CVE-2026-9804 kubevirt: kubevirt: VMExport directory symlink escape enables exporter pod file read

https://bugzilla.redhat.com/show_bug.cgi?id=2482487
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-9804

Vendor Advisories for CVE-2026-9804(7)

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

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatcontainer-native-virtualization/virt-exportserver-rhel9:17817574102026-06-22redhat
redhatcontainer-native-virtualization/virt-exportserver-rhel9:17819282212026-06-22redhat
redhatcontainer-native-virtualization/virt-exportserver-rhel9:17815909932026-06-22redhat
redhatcontainer-native-virtualization/virt-exportserver-rhel9:17818387122026-06-22redhat
redhatcontainer-native-virtualization/virt-exportserver-rhel9:17820129182026-06-22redhat
gokubevirt.io/kubevirt—ghsa

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 10× in last 7d / 81× 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 172 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-9804?
CVE-2026-9804 is a high vulnerability published on May 28, 2026. A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points…
When was CVE-2026-9804 disclosed?
CVE-2026-9804 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9804 actively exploited?
CVE-2026-9804 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9804?
CVE-2026-9804 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-9804?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9804, 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.

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