EUVD-2026-78662Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Sep 15, 2026
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. Process creation remains blocked, so OS command execution is not confirmed; exploitation needs valid credentials and no user interaction, the flaw is fixed in ArcadeDB 26.7.1, and no public exploit code or CISA KEV entry was identified at time of analysis.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 3 packages in maven, euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity 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
2DescriptionCVE.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.
Blast Radius
ecosystem impact- 11 maven packages depend on com.arcadedb:arcadedb-server (11 direct, 0 indirect)
Ecosystem-wide dependent count for version 26.7.1.
Technical POC Analysis
No runnable PoC and no patch diff were supplied with this evidence.
Full technical POC analysis - root cause, step-by-step exploitation and patch breakdown - is part of the Pro and Business plans.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
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
Exploit-DB