CVE-2026-75851: critical vulnerability in ArcadeData arcadedb
ArcadeDB before 26.8.1 Authentication Bypass via Async Command
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.4%
ArcadeDB server (com.arcadedb:arcadedb-server) in versions 26.7.3 and earlier fails to propagate the authenticated principal to asynchronous command worker threads. When an HTTP command is submitted with awaitResponse:false, it executes on an async worker whose DatabaseContext has no bound user, causing the scripting authorization gate to become a no-op. A user with only read access to a single database can submit an asynchronous JavaScript (language=js) command via the /api/v1/command endpoint to run code with unrestricted host access (e.g., database.getSecurity().createUser) and create a server-wide administrator, escalating to full administrative control. Fixed in 26.8.1.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Affected products
ArcadeData · arcadedbRelated CVEs — ArcadeData arcadedb
In the same product, most dangerous first.
CVE-2026-67340HIGHArcadeDB before 26.7.2 Remote Code Execution via Trigger ScriptsEPSS 0.9%CVE-2026-75854CRITICALArcadeDB Redis Wire-Protocol Plugin Missing AuthenticationEPSS 0.9%CVE-2026-76224HIGHArcadeDB before 26.8.1 Remote Code Execution via Groovy FallbackEPSS 0.9%CVE-2026-75852CRITICALArcadeDB MongoDB wire protocol authentication bypass cross-databaseEPSS 0.7%CVE-2026-114059HIGHArcadeDB before 26.10.1 RCE via Gremlin Groovy Engine Missing AuthorizationEPSS 0.6%CVE-2026-93598HIGHArcadeDB before 26.9.1 Classpath Credential Disclosure via ResourceBundleEPSS 0.6%