Is CVE-2026-42555 actively exploited?

No active exploitation of CVE-2026-42555 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42555 be exploited remotely?

Yes. CVE-2026-42555 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42555?

CVE-2026-42555 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2026-42555

CWE-94Published: May 14, 2026· Updated: May 14, 2026

9.1

CVSS v3.1

EPSS:0.23%probability of exploitation in 30 daysPercentile:45.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-42555 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.1.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.