valtimo com.ritense.valtimo:document up to 13.22.x Spring Expression Language code injection

Summaryinfo

A vulnerability was found in valtimo com.ritense.valtimo:document up to 13.22.x. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the component Spring Expression Language Handler. The manipulation leads to code injection. This vulnerability is referenced as CVE-2026-42555. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in valtimo com.ritense.valtimo:document up to 13.22.x. This issue affects an unknown code block of the component Spring Expression Language Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Valtimo is an open-source business process automation platform. com.ritense.valtimo:document from 12.0.0 to before 12.32.0, com.ritense.valtimo:case from 13.0.0 to before 13.23.0, and com.ritense.valtimo:contract from 13.4.0 to before 13.23.0 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 vulnerability is fixed in com.ritense.valtimo:document 2.32.0, com.ritense.valtimo:case 13.23.0, and com.ritense.valtimo:contract 13.23.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-42555 since 04/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

Upgrading to version 13.23.0 eliminates this vulnerability.

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Productinfo

Vendor

• valtimo

Name

• com.ritense.valtimo:document

Version

• 13.0
• 13.1
• 13.2
• 13.3
• 13.4
• 13.5
• 13.6
• 13.7
• 13.8
• 13.9
• 13.10
• 13.11
• 13.12
• 13.13
• 13.14
• 13.15
• 13.16
• 13.17
• 13.18
• 13.19
• 13.20
• 13.21
• 13.22

CPE 2.3info

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CPE 2.2info

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