CVE-2026-76388

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

In Splunk Enterprise Security versions below 8.6.1, a user who holds the ess_analyst Splunk Enterprise Security role could change User and Entity Behavior Analytics (UEBA) search macros that scheduled searches run with administrator permissions, allowing for access to all relevant data and system integrity through those searches. The vulnerability is possible because the UEBA app metadata grants analyst roles write access to search macros that should be writable only by administrator roles. For more information see Users and roles for Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/install/8.4/installation/users-and-roles-for-splunk-enterprise-security) and Roles and knowledge objects in UEBA for Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/administer/8.5/user-and-entity-behavior-analytics/roles-and-knowledge-objects-in-ueba-for-splunk-enterprise-security) in the Splunk documentation.

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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

SVD-2026-0807 | Splunk Vulnerability Disclosure

https://advisory.splunk.com/advisories/SVD-2026-0807

Vendor Advisories for CVE-2026-76388(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 26× in last 7d / 115× 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 134 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76388?
CVE-2026-76388 is a high vulnerability published on August 19, 2026. In Splunk Enterprise Security versions below 8.6.1, a user who holds the ess_analyst Splunk Enterprise Security role could change User and Entity Behavior Analytics (UEBA) search macros that scheduled searches run with administrator permissions, allowing for access to all relevant data and system…
When was CVE-2026-76388 disclosed?
CVE-2026-76388 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76388 actively exploited?
CVE-2026-76388 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 83.6% of all scored CVEs.
What is the CVSS score of CVE-2026-76388?
CVE-2026-76388 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-76388?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76388, 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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