EUVD-2026-78662Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Primary rating from Vendor (GitHub_M) · only source for this CVE.
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
5DescriptionCVE.org
ArcadeDB is a Multi-Model DBMS. Prior to 26.7.1, a reader-role user can submit POST /api/v1/command/{database} with language: js because PolyglotQueryEngine.command, PolyglotQueryEngine.analyze, and PolyglotQueryEngine.registerFunctions do not enforce database-administrator authorization. GraalPolyglotEngine also permits scripts to bypass the allowedPackages whitelist by reflecting from the bound database object through database.getClass().getClassLoader().loadClass to arbitrary host classes. These cooperating defects allow a read-only database user to read arbitrary host files outside the database scope. Process creation is already blocked, so OS command execution is not confirmed. The issue is distinct from CVE-2026-44221, CVE-2026-54076, and CVE-2026-54077. This issue is fixed in version 26.7.1.
AnalysisAI
Authenticated users holding only read-only (reader) privileges on an ArcadeDB database can escalate to arbitrary JVM scripting by POSTing a {"language":"js"} command to /api/v1/command/{database}, because the polyglot query engine never applies the database-administrator authorization check enforced on the SQL/Cypher paths. A cooperating sandbox flaw lets those scripts reflect from the bound database object through database.getClass().getClassLoader().loadClass to classes outside the allowedPackages whitelist, allowing an attacker to read arbitrary host files such as /etc/passwd and configuration files outside the database scope. …
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Unauthenticated data access and manipulation in ArcadeDB before 26.8.1 arises because the Redis wire-protocol plugin exp
Privilege escalation in ArcadeDB server (versions 26.7.3 and earlier) allows a low-privileged authenticated user with re
Privilege escalation in ArcadeDB before 26.8.1 lets a low-privileged authenticated reader escalate to full server admini
Authentication bypass in ArcadeDB before 26.8.1 lets unauthenticated attackers run full CRUD operations against any data
Scripting authorization bypass in ArcadeDB before 26.7.2 lets any authenticated database user - including read-only role
Cross-database authorization bypass (IDOR) in ArcadeDB before 26.7.2 lets attackers read and write any database on the s
Remote code execution in ArcadeDB's Gremlin query engine exposes any deployment running arcadedb-gremlin through version
Cross-database authorization bypass in ArcadeDB's Gremlin wire-protocol plugin allows any authenticated server user to f
Arbitrary file read in ArcadeDB before version 26.8.1 allows authenticated users holding trigger creation privileges to
Cluster token exposure in ArcadeDB before 26.7.2 enables any authenticated user to escalate privileges to root-level adm
Privilege escalation in ArcadeDB before 26.7.3 allows any user holding UPDATE_SCHEMA permission to create server-wide ad
Remote OS command execution in ArcadeDB before 26.7.2 is reachable by authenticated schema administrators through JavaSc
Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
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