CVE-2026-72636

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-08-13. 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 Recursion (CWE-674) in the Elasticsearch wildcard matching helper can lead to a denial of service via Excessive Allocation (CAPEC-130). The matcher used to resolve wildcard patterns against names is implemented recursively and had no bound on recursion depth or on the total number of match operations performed. A search request containing a wildcard pattern with a large number of wildcard groups, evaluated against a sufficiently long name, exhausts the thread stack. Elasticsearch treats a stack overflow as an unrecoverable condition and shuts the node down, so the request terminates the affected node rather than failing gracefully.

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
23%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
No patch confirmed yet.
generic

Elasticsearch 8.19.20, 9.4.5 Security Update (ESA-2026-133) - Security Announcements - Discuss the Elastic Stack

https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-security-update-esa-2026-133/389499

Vendor Advisories for CVE-2026-72636(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 16× in last 7d / 76× 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 101 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-72636?
CVE-2026-72636 is a medium vulnerability published on August 13, 2026. Uncontrolled Recursion (CWE-674) in the Elasticsearch wildcard matching helper can lead to a denial of service via Excessive Allocation (CAPEC-130). The matcher used to resolve wildcard patterns against names is implemented recursively and had no bound on recursion depth or on the total number of…
When was CVE-2026-72636 disclosed?
CVE-2026-72636 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72636 actively exploited?
CVE-2026-72636 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 77.0% of all scored CVEs.
What is the CVSS score of CVE-2026-72636?
CVE-2026-72636 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-72636?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72636, 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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