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.

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

EPSS: 0.003 (16.5th percentile) — read the EPSS interpretation.

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.

Affected products

Arcadedata Arcadedb — versions 0, 26.7.3

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (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.