Description
Camunda 7.24.0 before 7.24.14 and 7.23.0 before 7.23.17 contains an expression injection vulnerability where AdhocQueryValidator.validate() fails to check sub-query expression maps within the orQueries field exposed by TaskQueryDto, allowing authenticated users to bypass the enableExpressionsInAdhocQueries restriction. Attackers can supply a malicious JUEL expression such as dueAfterExpression inside an orQueries entry to achieve arbitrary Java reflection and invoke java.lang.Runtime.exec, resulting in operating-system command execution as the engine service user.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Camunda | Camunda 7 | 7.24.0 – < 7.24.14, 7.23.0 – < 7.23.17 | 7.24.14 |
Advisories 1
- WID-SEC-2026-4033 Camunda: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 19, 2026
References
- CodeAnt AI Blog technical-description exploit
- Camunda Download Page product patch
- VulnCheck Advisory: Camunda Expression Injection via orQueries RCE third-party-advisory