What is CVE-2025-43764?

CVE-2025-43764 is a medium-severity vulnerability in Liferay Digital Experience Platform, classified under Inefficient Regular Expression Complexity. CVSS score: 6.5/10. Published 2025-08-23.

How severe is CVE-2025-43764?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Liferay Digital Experience Platform

CVE-2025-43764

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.

Vulnerability class: ReDoS (Regular Expression Denial of Service)

EPSS: 0.003 (23.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Liferay Digital_experience_platform — versions 7.4
Liferay Dxp — versions 7.4.13, 2024.Q1.1, 2024.Q2.1
Liferay Liferay_portal
Liferay Portal — versions 7.4.3.0

Weakness classification (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

References

security@liferay.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-43764?: CVE-2025-43764 is a medium-severity vulnerability in Liferay Digital Experience Platform, classified under Inefficient Regular Expression Complexity. CVSS score: 6.5/10. Published 2025-08-23.
How severe is CVE-2025-43764?: Medium severity. CVSS v3 base score is 6.5 out of 10.