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Vulnerability record · CVE-2026-67357 · published 2 August 2026

CVE-2026-67357: Information exposure vulnerability

ArcadeDB versions before 26.7.3 contain an information disclosure vulnerability in the MCP get_server_settings tool that leaks the arcadedb.ha.clusterToken in cleartext. Attackers with MCP access can retrieve the cluster token and use it with X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User headers to impersonate root and achieve full server compromise.

7.7 CVSS 4.0 High EPSS 0.42% · top 65.8% CWE-200 · Information exposure Deferred
7.7CVSS 4.0 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
31 Aug 2026Last modified by NVD

Description

ArcadeDB versions before 26.7.3 contain an information disclosure vulnerability in the MCP get_server_settings tool that leaks the arcadedb.ha.clusterToken in cleartext. Attackers with MCP access can retrieve the cluster token and use it with X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User headers to impersonate root and achieve full server compromise.

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-p9wc-4fhr-78wm
https://www.vulncheck.com/advisories/arcadedb-information-disclosure-via-get-server-settings

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Source: NIST National Vulnerability Database (record CVE-2026-67357), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.