CVE-2026-75853

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-18. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

ArcadeDB's Gremlin wire-protocol plugin (com.arcadedb:arcadedb-gremlin) in versions <= 26.7.3 enforces authentication (SASL PLAIN) but performs no authorization: it never checks database access permissions (canAccessToDatabase) and never binds the authenticated principal into the engine. As a result, any valid server credential — even one provisioned for zero or one unrelated database — can read, write, and drop data in any database on the server by selecting a target database via a traversal-source alias, completely bypassing the engine's per-type/read-only/UPDATE_SCHEMA ACLs. The issue is fixed in version 26.8.1.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100CISA 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 Patch Available

ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database | Advisories | VulnCheck

https://www.vulncheck.com/advisories/arcadedb-gremlin-wire-protocol-authorization-bypass-cross-database
github Patch Available🟡 PoC Available

Gremlin wire protocol enforces authentication but no authorization, allowing cross-database read/write and engine ACL bypass · Advisory · ArcadeData/arcadedb · GitHub

https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-c287-v325-j5jx

Vendor Advisories for CVE-2026-75853(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 23× in last 7d / 104× 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 180 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-75853?
CVE-2026-75853 is a high vulnerability published on August 18, 2026. ArcadeDB's Gremlin wire-protocol plugin (com.arcadedb:arcadedb-gremlin) in versions <= 26.7.3 enforces authentication (SASL PLAIN) but performs no authorization: it never checks database access permissions (canAccessToDatabase) and never binds the authenticated principal into the engine. As a…
When was CVE-2026-75853 disclosed?
CVE-2026-75853 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-2026-75853 actively exploited?
CVE-2026-75853 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75853?
CVE-2026-75853 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75853?
A fix for CVE-2026-75853 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75853 are linked in the Vendor Advisories panel on this page.

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