CVE-2026-75845

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-08-18. A secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.3Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

ArcadeDB versions 26.4.2 through 26.7.3 contain an authorization bypass vulnerability in the set_server_setting MCP server-level tool. SetServerSettingTool.execute() gates only on the global allowAdmin flag and never checks the caller's role, so in an MCP deployment with allowAdmin=true and a non-root allowedUsers set, any authenticated read-only user can invoke set_server_setting to modify server GlobalConfiguration, enabling configuration tampering or denial of service. The issue is fixed in 26.8.1.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100CISA SSVC

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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
19th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 18, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Aug 18, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

ArcadeDB 26.4.2 before 26.8.1 Authorization Bypass via set_server_setting | Advisories | VulnCheck

https://www.vulncheck.com/advisories/arcadedb-before-authorization-bypass-via-set-server-setting
github Patch Available🟡 PoC Available

Authorization bypass in ArcadeDB MCP: read-only user can invoke server-admin set_server_setting · Advisory · ArcadeData/arcadedb · GitHub

https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-pff6-hp53-pj54

Vendor Advisories for CVE-2026-75845(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 14× 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 131 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-75845?
CVE-2026-75845 is a medium vulnerability published on August 18, 2026. ArcadeDB versions 26.4.2 through 26.7.3 contain an authorization bypass vulnerability in the setserversetting MCP server-level tool. SetServerSettingTool.execute() gates only on the global allowAdmin flag and never checks the caller's role, so in an MCP deployment with allowAdmin=true and a…
When was CVE-2026-75845 disclosed?
CVE-2026-75845 was first published on August 18, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75845 actively exploited?
CVE-2026-75845 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75845?
CVE-2026-75845 has a CVSS base score of 6.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75845?
A fix for CVE-2026-75845 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75845 are linked in the Vendor Advisories panel on this page.

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