CVE-2026-75839

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-08-18. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

ArcadeDB (com.arcadedb:arcadedb-server) versions <= 26.7.3 contain an insecure direct object reference (IDOR) vulnerability in the Raft cluster-info endpoints (GetClusterHandler and PostBootstrapStateHandler), which authenticate but do not authorize access. On an ArcadeDB HA cluster (only reachable when arcadedb.ha.enabled is set and the ha-raft module is loaded), any authenticated user — including one granted access to only one database or none — can enumerate the full server database registry and retrieve per-database metadata such as database names, last transaction IDs, bootstrap fingerprints, and peer/leader cluster topology, resulting in cross-database information disclosure. Fixed in 26.8.1.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100CISA 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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

Exploitation none (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

August 31, 2026

Advisory Details (2)

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

ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints | Advisories | VulnCheck

https://www.vulncheck.com/advisories/arcadedb-before-information-disclosure-via-cluster-endpoints
github Patch Available🟡 PoC Available

Raft cluster-info endpoints leak cross-database metadata to any authenticated user (IDOR) · Advisory · ArcadeData/arcadedb · GitHub

https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-79wq-w74x-74ch

Vendor Advisories for CVE-2026-75839(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 15× in last 7d / 74× 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 16:23 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 07:15 UTCEG score recompute
  7. 2026-10-02 07:15 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-10-01 08:37 UTCEG score recompute
  10. 2026-10-01 08:37 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. 2026-09-29 05:27 UTCEG score recompute
  15. 2026-09-29 05:27 UTCGHSA enrichment
  16. 2026-09-28 13:52 UTCEPSS rescore
  17. 2026-09-28 06:48 UTCEG score recompute
  18. 2026-09-28 06:48 UTCGHSA enrichment
  19. 2026-09-27 13:48 UTCEPSS rescore
  20. 2026-09-27 08:02 UTCEG score recompute
  21. 2026-09-27 08:02 UTCGHSA enrichment
  22. 2026-09-26 15:59 UTCEPSS rescore
  23. 2026-09-26 00:28 UTCEPSS rescore
  24. 2026-09-25 01:43 UTCEG score recompute
  25. 2026-09-25 01:43 UTCGHSA enrichment
Show 75 more
  1. 2026-09-24 14:04 UTCEPSS rescore
  2. 2026-09-23 20:26 UTCEG score recompute
  3. 2026-09-23 20:26 UTCGHSA enrichment
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-22 20:36 UTCEG score recompute
  6. 2026-09-22 20:35 UTCGHSA enrichment
  7. 2026-09-22 16:01 UTCEPSS rescore
  8. 2026-09-21 21:09 UTCEPSS rescore
  9. 2026-09-21 18:27 UTCEG score recompute
  10. 2026-09-21 18:27 UTCGHSA enrichment
  11. 2026-09-20 20:16 UTCEPSS rescore
  12. 2026-09-20 19:11 UTCGHSA enrichment
  13. 2026-09-19 20:32 UTCEG score recompute
  14. 2026-09-19 20:32 UTCGHSA enrichment
  15. 2026-09-18 21:54 UTCEG score recompute
  16. 2026-09-18 21:53 UTCGHSA enrichment
  17. 2026-09-18 19:28 UTCEPSS rescore
  18. 2026-09-17 21:53 UTCEG score recompute
  19. 2026-09-17 21:53 UTCGHSA enrichment
  20. 2026-09-16 21:59 UTCEG score recompute
  21. 2026-09-16 21:59 UTCGHSA enrichment
  22. 2026-09-16 14:08 UTCEPSS rescore
  23. 2026-09-16 05:15 UTCEPSS rescore
  24. 2026-09-15 19:11 UTCEG score recompute
  25. 2026-09-15 19:11 UTCGHSA enrichment
  26. 2026-09-15 03:12 UTCEPSS rescore
  27. 2026-09-14 19:49 UTCGHSA enrichment
  28. 2026-09-13 21:09 UTCEG score recompute
  29. 2026-09-13 21:09 UTCGHSA enrichment
  30. 2026-09-12 22:30 UTCEG score recompute
  31. 2026-09-12 22:30 UTCGHSA enrichment
  32. 2026-09-12 15:02 UTCEPSS rescore
  33. 2026-09-11 23:44 UTCEG score recompute
  34. 2026-09-11 23:44 UTCGHSA enrichment
  35. 2026-09-11 14:53 UTCEPSS rescore
  36. 2026-09-11 00:51 UTCEG score recompute
  37. 2026-09-11 00:51 UTCGHSA enrichment
  38. 2026-09-10 09:35 UTCEPSS rescore
  39. 2026-09-10 02:12 UTCGHSA enrichment
  40. 2026-09-09 03:33 UTCEG score recompute
  41. 2026-09-09 03:33 UTCGHSA enrichment
  42. 2026-09-08 22:01 UTCEPSS rescore
  43. 2026-09-07 16:10 UTCEG score recompute
  44. 2026-09-07 16:10 UTCGHSA enrichment
  45. 2026-09-06 16:58 UTCEG score recompute
  46. 2026-09-06 16:58 UTCGHSA enrichment
  47. 2026-09-06 13:48 UTCEPSS rescore
  48. 2026-09-05 18:19 UTCEG score recompute
  49. 2026-09-05 18:19 UTCGHSA enrichment
  50. 2026-09-04 19:35 UTCEG score recompute
  51. 2026-09-04 19:35 UTCGHSA enrichment
  52. 2026-09-04 05:07 UTCEPSS rescore
  53. 2026-09-03 20:40 UTCGHSA enrichment
  54. 2026-09-02 22:01 UTCEG score recompute
  55. 2026-09-02 22:01 UTCGHSA enrichment
  56. 2026-09-02 14:12 UTCEPSS rescore
  57. 2026-09-01 20:11 UTCEG score recompute
  58. 2026-09-01 20:11 UTCGHSA enrichment
  59. 2026-09-01 13:54 UTCEPSS rescore
  60. 2026-09-01 04:40 UTCEPSS rescore
  61. 2026-09-01 04:40 UTCEPSS rescore
  62. 2026-08-31 20:42 UTCGHSA enrichment
  63. 2026-08-31 02:06 UTCEG score recompute
  64. 2026-08-31 02:06 UTCGHSA enrichment
  65. 2026-08-30 19:18 UTCEPSS rescore
  66. 2026-08-30 19:17 UTCEPSS rescore
  67. 2026-08-30 03:27 UTCEG score recompute
  68. 2026-08-30 03:27 UTCGHSA enrichment
  69. 2026-08-30 01:22 UTCEPSS rescore
  70. 2026-08-29 04:48 UTCEG score recompute
  71. 2026-08-29 04:48 UTCGHSA enrichment
  72. 2026-08-28 21:42 UTCEPSS rescore
  73. 2026-08-28 01:17 UTCEG score recompute
  74. 2026-08-28 01:16 UTCGHSA enrichment
  75. 2026-08-27 14:25 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-75839?
CVE-2026-75839 is a medium vulnerability published on August 18, 2026. ArcadeDB (com.arcadedb:arcadedb-server) versions <= 26.7.3 contain an insecure direct object reference (IDOR) vulnerability in the Raft cluster-info endpoints (GetClusterHandler and PostBootstrapStateHandler), which authenticate but do not authorize access. On an ArcadeDB HA cluster (only reachable…
When was CVE-2026-75839 disclosed?
CVE-2026-75839 was first published on August 18, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75839 actively exploited?
CVE-2026-75839 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75839?
CVE-2026-75839 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75839?
A fix for CVE-2026-75839 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75839 are linked in the Vendor Advisories panel on this page.

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