CVE-2026-42555: Valtimo: SpEL injection via StandardEvaluationContext allows Remote Code Execution by admin users

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-14 · updated 2026-10-25
Weakness: CWE-94

Description

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.

Affected products

com.ritense.valtimo case: from 13.0.0, < 13.23.0
com.ritense.valtimo contract: from 13.4.0, < 13.23.0
com.ritense.valtimo document: from 12.0.0, < 12.32.0
valtimo-platform valtimo: before 13.23.0

References

https://github.com/valtimo-platform/valtimo/security/advisories/GHSA-j7j9-5253-f7vh

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