CVE-2026-63261

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-22. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 21, 2026

Last Modified

August 3, 2026

Advisory Details (1)

Auto-updated Jul 22, 2026
No patch confirmed yet.
generic

Kibana 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-72) - Security Announcements - Discuss the Elastic Stack

https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-72/388575

Vendor Advisories for CVE-2026-63261(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 72× 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 156 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-63261?
CVE-2026-63261 is a medium vulnerability published on July 21, 2026. Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become…
When was CVE-2026-63261 disclosed?
CVE-2026-63261 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63261 actively exploited?
CVE-2026-63261 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 60.6% of all scored CVEs.
What is the CVSS score of CVE-2026-63261?
CVE-2026-63261 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-63261?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63261, 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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