CVE-2026-75853

HIGH 8.8

ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	arcadedata
Product	arcadedb
Published	Aug 18, 2026
Last Updated	Aug 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

ArcadeData / arcadedb

0 < 26.8.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-c287-v325-j5jx vulncheck.com: https://www.vulncheck.com/advisories/arcadedb-gremlin-wire-protocol-authorization-bypass-cross-database

Credits

🔍 manus-use