CVE-2026-75845
ArcadeDB 26.4.2 before 26.8.1 Authorization Bypass via set_server_setting
CVSS Score
6.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-269 |
| 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:L/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Affected Versions
ArcadeData / arcadedb
26.4.2 < 26.8.1
References
Credits
🔍 dapickle