CVE-2026-42555Network attack vector

Admin-level code execution via unrestricted SpEL evaluation

Published May 14, 2026 · Updated May 14, 2026

SpEL injection in Valtimo case, contract, and document modules allows remote authenticated users with ADMIN access to execute code. DocumentMigrationService.handleSpelExpression and Condition.resolveValue evaluate user-controlled template or condition values with StandardEvaluationContext, exposing Java types and method calls. ADMIN access is required, after which crafted expressions can run operating-system commands and read environment variables, JVM properties, or application credentials.

CVSS severity9.1
Critical
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SpEL injection in Valtimo case, contract, and document modules allows remote authenticated users with ADMIN access to execute code. DocumentMigrationService.handleSpelExpression and Condition.resolveValue evaluate user-controlled template or condition values with StandardEvaluationContext, exposing Java types and method calls. ADMIN access is required, after which crafted expressions can run operating-system commands and read environment variables, JVM properties, or application credentials.

The record

CVE
CVE-2026-42555
Published
May 14, 2026
Updated
May 14, 2026
Vendor
Valtimo
Product
Case Module
Classifications
CWE-94, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 14, 2026CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 13.0.0, < 13.23.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Valtimo · Case Moduleversion=>= 13.0.0, < 13.23.0
Valtimo · Contract Moduleversion=>= 13.4.0, < 13.23.0
Valtimo · Document Moduleversion=>= 12.0.0, < 12.32.0
Ritense · Valtimoversion=< 13.23.0

Published CVSS scores

9.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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