🛡️ CVE-2025-43764 — digital-experience-platform

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-1333 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Liferay Portal ReDoS with Role Name search in KaleoDesignerPortlet

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2025-43764 is classified as CWE-1333: Inefficient Regular Expression Complexity. A regular expression backtracks catastrophically on crafted input, consuming CPU out of proportion to input size.

Affected software

CVE-2025-43764 is recorded against 3 packages.

  • com.liferay:com.liferay.portal.workflow.kaleo.designer.web (fixed in 5.0.145)
  • digital-experience-platform
  • liferay-portal (from 7.4.0 up to 7.4.3.132)

Timeline and source

Published on 23 August 2025 and last revised on 25 August 2025. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
liferay.atlassian.net (Web)
liferay.dev (Web)

Details

Severity Medium
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-1333
Public Exploit ✅ No
Source NVD
Published 2025-08-23
Updated 2026-08-12
Modified 2025-08-25
Fix URL N/A

Affected Packages

Software From version Fixed in
com.liferay:com.liferay.portal.workflow.kaleo.designer.web 5.0.145
digital-experience-platform
liferay-portal 7.4.0 7.4.3.132

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