Vulnerability · Published Aug 18, 2026 · Assigned by VulnCheck
CVE-2026-75852ArcadeDB MongoDB wire protocol authentication bypass cross-database
Critical 9.8
In plain English
A critical-severity missing authentication in arcadedb from ArcadeData. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 48.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
ArcadeDB versions before 26.8.1 fail to enforce SASL authentication on data commands in the MongoDB wire-protocol plugin. Unauthenticated attackers can issue insert, find, update, delete, and create commands against any database by connecting to port 27017 without credentials.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ArcadeData | arcadedb | 0 – before 26.8.1 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-fq9c-x968-g278) vendor-advisory
- VulnCheck Advisory: ArcadeDB MongoDB wire protocol authentication bypass cross-database third-party-advisory