Information disclosure in Arcadedata Arcadedb
CVE-2026-67343
ArcadeDB versions before 26.7.2 fail to properly redact the cluster token in the GET /api/v1/server endpoint, allowing authenticated users to retrieve the arcadedb.ha.clusterToken value in cleartext. Attackers can use the leaked token with X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User headers to impersonate root and execute administrative actions including user creation, database operations, and server shutdown.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Arcadedata Arcadedb — versions 0, 26.7.2
Weakness classification (CWE)
References
- github.com/ArcadeData/arcadedb/security/advisories/GHSA-46hj-24h4-j8gf (vendor-advisory)
- www.vulncheck.com/advisories/arcadedb-before-cluster-token-disclosure-via-get-a… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-67343?
- CVE-2026-67343 is a high-severity vulnerability in Arcadedata Arcadedb, classified under Information Disclosure. CVSS score: 8.8/10. Published 2026-08-01.
- How severe is CVE-2026-67343?
- High severity. CVSS v3 base score is 8.8 out of 10.