GHSA-48qw-824m-86pr
HIGHArcadeDB: Privilege escalation via reader role in /api/v1/command JS scripting language — arbitrary host file read
Blast Radius
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Description
Impact
A user holding only reader (read-only) privileges on a single database could execute arbitrary JVM code by sending a "language": "js" command to the POST /api/v1/command/{database} HTTP endpoint, and use it to read arbitrary files on the host filesystem (e.g. /etc/passwd, configuration files), outside the scope of the database itself.
Two cooperating defects made this possible:
- Missing authorization on the scripting path (CWE-863 / CWE-269). Polyglot script execution (
jsand other GraalVM languages) never went through the database authorization checks applied to SQL/Cypher, so any authenticated principal - regardless of database role - could run scripts. - Sandbox whitelist bypass. The GraalVM sandbox restricts direct class lookups to a configured
allowedPackageslist, but a script could reach arbitrary classes by reflecting off the bounddatabaseobject:database.getClass().getClassLoader().loadClass("java.io.File").
Process creation was already blocked (allowCreateProcess(false)), so the confirmed impact is host file read, not OS command execution. Confidentiality: High. Integrity/Availability: None.
This is a distinct entry point and root cause from CVE-2026-44221, CVE-2026-54076 and CVE-2026-54077, and is reproducible on builds that already contain those fixes.
Patches
The fix is applied in the engine so it covers every entry point (HTTP command, HA-forwarded commands, MCP analyze), not only the HTTP handler:
- Polyglot script execution now requires the
updateSecuritydatabase-administrator permission oncommand,analyzeandregisterFunctions. The check runs on the request thread that carries the authenticated user and is a no-op in embedded mode and internal/system contexts (schema load, HA replication apply). - The GraalVM host-access policy now denies access to
java.lang.Class,java.lang.ClassLoaderandjava.lang.reflectmembers, closing the reflection escape that bypassedallowedPackages- even for authorized administrators - while leaving normal method calls on bound objects and explicitJava.type(...)lookups (governed byallowedPackages) working.
Workarounds
Until upgraded, do not grant command/query access on the HTTP API to untrusted users, and treat any account that can reach /api/v1/command as capable of code execution. Note that after the fix, non-administrator accounts can no longer run js/polyglot scripts over HTTP.
Credit
Reported by @kyojune76.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | com.arcadedb:arcadedb-server | all versions | 26.7.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.arcadedb:arcadedb-server. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update com.arcadedb:arcadedb-server to 26.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-48qw-824m-86pr is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-48qw-824m-86pr is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-48qw-824m-86pr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-48qw-824m-86pr in your dependencies?
O3 detects GHSA-48qw-824m-86pr across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.