CVE-2026-75845ArcadeDB 26.4.2 before 26.8.1 Authorization Bypass via set_server_setting
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-269
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ArcadeData arcadedb arcadedata:arcadedb (from the name) | from 26.4.2 before 26.8.1; 26.8.1 not affected | CNA record |
References
- https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-pff6-hp53-pj54vendor-advisory
- https://www.vulncheck.com/advisories/arcadedb-before-authorization-bypass-via-set-server-settingthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.