Information disclosure in Arcadedata Arcadedb
CVE-2026-67357
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Arcadedata Arcadedb — versions 0, 26.7.3
Weakness classification (CWE)
References
- github.com/ArcadeData/arcadedb/security/advisories/GHSA-p9wc-4fhr-78wm (vendor-advisory)
- www.vulncheck.com/advisories/arcadedb-information-disclosure-via-get-server-set… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-67357?
- CVE-2026-67357 is a high-severity vulnerability in Arcadedata Arcadedb, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-08-02.
- How severe is CVE-2026-67357?
- High severity. CVSS v3 base score is 7.5 out of 10.