Improper Control of Generation of Code ('Code Injection')
CVE-2026-42555
Summary
Multiple classes evaluate Spring Expression Language (SpEL) expressions from user-supplied input using `StandardEvaluationContext`, which provides unrestricted access to Java types and methods. An authenticated user with the ADMIN role can achieve Remote Code Execution and credential exfiltration. This affects Valtimo case versions 13.x prior to 13.23.0, Valtimo contract versions 13.4.x prior to 13.23.0, Valtimo Document versions 12.x prior to 12.32.0.
- LOW
- NETWORK
- HIGH
- CHANGED
- NONE
- HIGH
- HIGH
- HIGH
CWE-94 - Code Injection
Code injection is a type of vulnerability that allows an attacker to execute arbitrary code. This vulnerability fully compromises the machine and can cause a wide variety of security issues, such as unauthorized access to sensitive information, manipulation of data, denial of service attacks etc. Code injection is different from command injection in the fact that it is limited by the functionality of the injected language (e.g. PHP), as opposed to command injection, which leverages existing code to execute commands, usually within the context of a shell.
References
Advisory Timeline
- Published
