CVE-2026-62391

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-31. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The security fix for CVE-2025-66518 is incomplete. Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allowlist via unprefixed Spark config aliases.

This issue affects Apache Kyuubi: from 1.6.0 before 1.12.0.

Users are recommended to upgrade to version 1.12.0, which fixes the issue.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

July 31, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Jul 31, 2026
No patch confirmed yet.
generic
https://lists.apache.org/thread/vo4k4nxz23kfzrpp120nsojb0vrkx4w1

Vendor Advisories for CVE-2026-62391(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 90× 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 171 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-62391?
CVE-2026-62391 is a high vulnerability published on July 31, 2026. The security fix for CVE-2025-66518 is incomplete. Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allowlist via unprefixed Spark config aliases. This issue affects Apache Kyuubi: from 1.6.0 before 1.12.0. Users…
When was CVE-2026-62391 disclosed?
CVE-2026-62391 was first published in the National Vulnerability Database on July 31, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62391 actively exploited?
CVE-2026-62391 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.7% of all scored CVEs.
What is the CVSS score of CVE-2026-62391?
CVE-2026-62391 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-62391?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62391, 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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