CVE-2026-75855

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

Score 8.7 from GitHub Security Advisory (severity: HIGH) published 2026-08-18. A secondary CVSS source baseline 8.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.7Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

ArcadeDB versions before 26.8.1 fail to sanitize database names in the POST /api/v1/server endpoint's create database and drop database commands, allowing authenticated root users to write and delete arbitrary files outside the configured database directory. Attackers can supply database names containing ../ sequences to create databases at arbitrary filesystem paths or recursively delete directories the server process can access.

CVSS v3
8.7
EG Score
8.7HIGHmedium confidence
EG Risk
55
EG Risk 55/100CISA 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
Severity87% × 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
0.5%
EPSS %ILE
43rd
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 before 26.8.1 Path Traversal via create/drop database | Advisories | VulnCheck

https://www.vulncheck.com/advisories/arcadedb-before-path-traversal-via-create-drop-database
github Patch Available🟡 PoC Available

Path Traversal in "create database" / "drop database" server commands allows arbitrary file write and delete outside the configured database directory · Advisory · ArcadeData/arcadedb · GitHub

https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-qwgr-2c45-63xx

Vendor Advisories for CVE-2026-75855(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 / 103× 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 05:24 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 03:24 UTCEG score recompute
  10. 2026-10-03 03:24 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 09:18 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 09:15 UTCGHSA enrichment
  25. 2026-09-27 21:34 UTCEG score recompute
Show 75 more
  1. 2026-09-27 21:34 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 08:27 UTCGHSA enrichment
  11. 2026-09-23 20:46 UTCEG score recompute
  12. 2026-09-23 20:46 UTCGHSA enrichment
  13. 2026-09-23 17:54 UTCEPSS rescore
  14. 2026-09-23 09:05 UTCGHSA enrichment
  15. 2026-09-22 21:24 UTCEG score recompute
  16. 2026-09-22 21:24 UTCGHSA enrichment
  17. 2026-09-22 16:01 UTCEPSS rescore
  18. 2026-09-22 09:44 UTCGHSA enrichment
  19. 2026-09-21 21:49 UTCEG score recompute
  20. 2026-09-21 21:49 UTCGHSA enrichment
  21. 2026-09-21 21:09 UTCEPSS rescore
  22. 2026-09-21 10:08 UTCGHSA enrichment
  23. 2026-09-20 22:27 UTCEG score recompute
  24. 2026-09-20 22:27 UTCGHSA enrichment
  25. 2026-09-20 20:16 UTCEPSS rescore
  26. 2026-09-20 10:43 UTCGHSA enrichment
  27. 2026-09-19 23:02 UTCEG score recompute
  28. 2026-09-19 23:02 UTCGHSA enrichment
  29. 2026-09-19 11:21 UTCGHSA enrichment
  30. 2026-09-18 23:39 UTCEG score recompute
  31. 2026-09-18 23:39 UTCGHSA enrichment
  32. 2026-09-18 19:28 UTCEPSS rescore
  33. 2026-09-18 11:58 UTCGHSA enrichment
  34. 2026-09-18 00:16 UTCEG score recompute
  35. 2026-09-18 00:16 UTCGHSA enrichment
  36. 2026-09-17 11:07 UTCGHSA enrichment
  37. 2026-09-16 23:23 UTCEG score recompute
  38. 2026-09-16 23:23 UTCGHSA enrichment
  39. 2026-09-16 14:08 UTCEPSS rescore
  40. 2026-09-16 11:42 UTCEG score recompute
  41. 2026-09-16 11:42 UTCGHSA enrichment
  42. 2026-09-16 05:15 UTCEPSS rescore
  43. 2026-09-16 00:01 UTCGHSA enrichment
  44. 2026-09-15 11:49 UTCEG score recompute
  45. 2026-09-15 11:49 UTCGHSA enrichment
  46. 2026-09-15 03:12 UTCEPSS rescore
  47. 2026-09-15 00:08 UTCGHSA enrichment
  48. 2026-09-14 11:24 UTCGHSA enrichment
  49. 2026-09-13 23:43 UTCEG score recompute
  50. 2026-09-13 23:43 UTCGHSA enrichment
  51. 2026-09-13 12:02 UTCGHSA enrichment
  52. 2026-09-13 00:21 UTCEG score recompute
  53. 2026-09-13 00:21 UTCGHSA enrichment
  54. 2026-09-12 15:02 UTCEPSS rescore
  55. 2026-09-12 12:40 UTCGHSA enrichment
  56. 2026-09-12 00:59 UTCEG score recompute
  57. 2026-09-12 00:59 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 12:52 UTCEG score recompute
  63. 2026-09-10 12:52 UTCGHSA enrichment
  64. 2026-09-10 09:35 UTCEPSS rescore
  65. 2026-09-10 01:11 UTCGHSA enrichment
  66. 2026-09-09 08:35 UTCEG score recompute
  67. 2026-09-09 08:35 UTCGHSA enrichment
  68. 2026-09-08 22:01 UTCEPSS rescore
  69. 2026-09-08 20:53 UTCGHSA enrichment
  70. 2026-09-07 22:15 UTCEG score recompute
  71. 2026-09-07 22:15 UTCGHSA enrichment
  72. 2026-09-07 10:30 UTCGHSA enrichment
  73. 2026-09-06 20:42 UTCEG score recompute
  74. 2026-09-06 20:42 UTCGHSA enrichment
  75. 2026-09-06 13:48 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-75855?
CVE-2026-75855 is a high vulnerability published on August 18, 2026. ArcadeDB versions before 26.8.1 fail to sanitize database names in the POST /api/v1/server endpoint's create database and drop database commands, allowing authenticated root users to write and delete arbitrary files outside the configured database directory. Attackers can supply database names…
When was CVE-2026-75855 disclosed?
CVE-2026-75855 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-2026-75855 actively exploited?
CVE-2026-75855 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75855?
CVE-2026-75855 has a CVSS base score of 8.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75855?
A fix for CVE-2026-75855 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75855 are linked in the Vendor Advisories panel on this page.

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