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Digital Experience PlatformApplication · Liferay

CVE-2025-43764

MEDIUM · 6.5 CVSS v3.1 Published 2025-08-23
Fix available
A fix is available. Upgrade to 7.4.3.132 / 2024.Q4.2 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Self-ReDoS (Regular expression Denial of Service) exists with Role Name search field of Kaleo Designer portlet JavaScript in Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.1, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.1 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.20 and 7.4 GA through update 92, which allows authenticated users with permissions to update Kaleo Workflows to enter a malicious Regex pattern causing their browser to hang for a very long time.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Self-ReDoS vulnerability in Liferay's Kaleo Designer portlet JavaScript where the Role Name search field accepts malicious Regex patterns. Authenticated users with Kaleo Workflow permissions can input crafted regex causing catastrophic backtracking in the browser's regex engine, leading to extended browser hang.

MitigationApply vendor patch when available. As interim measure, restrict Kaleo Workflow administration permissions to minimal required users, or consider temporarily disabling the Role Name search functionality until patched.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Digital Experience PlatformApplication
Affected:>= 2024.Q1.1, <= 2024.Q1.20>= 2024.q2.0, <= 2024.q2.13>= 2024.q3.1, <= 2024.q3.13>= 2024.Q4.0, < 2024.Q4.2= 7.4
Liferay PortalApplication
Affected:>= 7.4.0, < 7.4.3.132

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Liferays version
    Check the Liferays portal or DXP version in the Control Panel under Configuration > Server Information, or inspect the liferay-oscæ-tomcat bundle version properties
    Affected if The installed version falls within the affected ranges: DXP 2024.Q1.1 to 2024.Q1.20, 2024.q2.0 to 2024.q2.13, 2024.q3.1 to 2024.q3.13, 2024.Q4.0 to 2024.Q4.1, or version 7.4; Portal 7.4.0 to 7.4.3.131
  2. Confirm Kaleo Workflow is enabled
    Navigate to Control Panel > Workflow > Process Builder or inspect the Kaleo workflow engine configuration in the OSGi console
    Affected if Kaleo workflow engine is active and the workflow definition framework is loaded
  3. Verify Kaleo Designer portlet is deployed
    Check for the Kaleo Designer portlet in the Liferays UI under Control Panel > Workflow > Kaleo Designer, or query the OSGi bundle list for com_liferays_kaleo_designer
    Affected if The Kaleo Designer portlet is present in the running instance
  4. Check for Kaleo Workflow admin permissions
    Review user roles in Control Panel > Users and Permissions > Role Definitions, looking for roles with Kaleo Workflow permissions such as Kaleo Administrator or Workflow Viewer
    Affected if Any authenticated users possess Kaleo Workflow permissions enabling access to the Role Name search field in Kaleo Designer
  5. Locate the vulnerable Role Name search component
    Access the Kaleo Designer interface and identify the Role Name search field used for filtering workflow roles, typically found in the role assignment or task assignment sections
    Affected if The Role Name search field is accessible and accepts user input for filtering roles

You are affected if your Liferays version matches the affected ranges AND Kaleo Workflow is enabled with the Kaleo Designer portlet accessible to authenticated users with workflow permissions.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 7.4.3.132 / 2024.Q4.2 or later
Fixed in 7.4.3.1322024.Q4.2
Interim mitigation

Apply vendor patch when available. As interim measure, restrict Kaleo Workflow administration permissions to minimal required users, or consider temporarily disabling the Role Name search functionality until patched.

Recommended fix High confidence

2024.Q4.2 (DXP) or 7.4.3.132 (Portal)

  1. Identify the exact Liferay product and version currently installed (Portal or DXP with specific quarterly version)
  2. For Lifter DXP: Upgrade to version 2024.Q4.2 or later
  3. For Liferay Portal: Upgrade to version 7.4.3.132 or later
  4. After upgrade, verify the Kaleo Designer portlet functionality remains intact
  5. Confirm the Role Name search field no longer causes browser hang with complex regex patterns
Caveat Review release notes for any breaking changes between current version and target upgrade version before proceeding

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Digital Experience Platform Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-43764 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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