CVE-2026-54076: ArcadeDB Read-only Users Can Mutate Database Vulnerability
HIGHCVE-2026-54076 is a HIGH (CVSS 8.1) read-only users can mutate database vulnerability (CWE-862: Missing Authorization) affecting ArcadeDB libraries in the Maven ecosystem. The issue involves read-only users can mutate database schema (incomplete fix of cve-2026-44221). Remediation is available by upgrading affected packages to version 26.6.1.
CVE-2026-54076 at a Glance
Security Impact
CVSS: 8.1
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H).
How to Fix CVE-2026-54076
To remediate this vulnerability, upgrade all affected ArcadeDB dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>com.arcadedb</groupId>
<artifactId>arcadedb-engine</artifactId>
<version>26.6.1</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=com.arcadedbHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-54076, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=com.arcadedbAnalyze the terminal output to locate any version of ArcadeDB in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 26.6.1), your application is affected.
Note: The mvn dependency:tree -Dincludes=com.arcadedb command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In ArcadeDB, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-54076 Affected ArcadeDB Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
com.arcadedb:arcadedb-engine
|
Maven |
< 26.6.1
|
26.6.1
|
References
Frequently Asked Questions
What is CVE-2026-54076?
Which ArcadeDB versions are affected?
What version fixes CVE-2026-54076?
Is arcadedb-engine affected?
What is the CVSS score of CVE-2026-54076?
What CWE is associated with CVE-2026-54076?
How can I check Maven dependencies for CVE-2026-54076?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-vg6x-6pg9-6qwg",
"modified" : "2026-07-16T20:08:24Z",
"published" : "2026-07-16T20:08:24Z",
"aliases" : [ "CVE-2026-54076" ],
"summary" : "ArcadeDB: Read-only users can mutate database schema (incomplete fix of CVE-2026-44221)",
"details" : "### Impact\n\nThe fix for CVE-2026-44221 (GHSA-fxc7-fm93-6q77) added an `UPDATE_SCHEMA` authorization check to a single schema-mutating method (`LocalDocumentType.createProperty`). The remaining public schema mutators were left unchecked, so an authenticated identity (including a **read-only API token**) that lacks the `UPDATE_SCHEMA` permission could still mutate the database schema on its own database:\n\n- `DROP PROPERTY <type>.<property>`\n- `ALTER TYPE <name> SUPERTYPE +<other>` / `-<other>` (change the inheritance hierarchy)\n- `ALTER TYPE <name> NAME <newName>` (rename a type)\n- type alias and bucket changes\n- `ALTER PROPERTY <type>.<property> ...` (MANDATORY, READONLY, NOTNULL, MIN, MAX, REGEXP, DEFAULT, OF, CUSTOM) — the `LocalProperty` setters had no check at all\n\nThis does not directly disclose or write record data, but it corrupts the meaning of every stored record and breaches the documented permission model, which advertises `UPDATE_SCHEMA` as the gating right for schema mutation.\n\n### Affected component\n\nEngine schema layer: `engine/src/main/java/com/arcadedb/schema/LocalDocumentType.java` and `engine/src/main/java/com/arcadedb/schema/LocalProperty.java`, reachable via the SQL `DROP PROPERTY`, `ALTER TYPE`, and `ALTER PROPERTY` statements over the database command/query HTTP endpoints.\n\n### Patches\n\nEvery public schema-mutating method on `LocalDocumentType` and `LocalProperty` now enforces `checkPermissionsOnDatabase(UPDATE_SCHEMA)` via a shared helper. The check is a no-op in embedded mode and in system contexts with no bound user (schema load at startup, HA replication apply), so internal paths and administrators are unaffected.\n\n### Workarounds\n\nGrant write access only to trusted users and API tokens; treat all schema DDL as administrator-only at the application layer until upgraded.\n\n### Resources\n\nIncomplete-fix sibling of CVE-2026-44221 / GHSA-fxc7-fm93-6q77.\n\n### Credit\n\nReported by Kai Aizen (SnailSploit).",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "com.arcadedb:arcadedb-engine"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "26.6.1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vg6x-6pg9-6qwg"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/ArcadeData/arcadedb"
}, {
"type" : "WEB",
"url" : "https://github.com/ArcadeData/arcadedb/releases/tag/26.6.1"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-862", "CWE-863" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2026-07-16T20:08:24Z",
"nvd_published_at" : null
}
}