CVE-2025-43764Network attack vector

Browser hang via regex role-name matching

Published Aug 23, 2025 · Updated Aug 23, 2025

Self-ReDoS in affected Liferay Portal 7.4 and Liferay DXP 7.4/2024 releases allows remote authenticated users to hang their browser. BaseRoleType.tsx passed lowercased role-name input to String.match(), compiling it as a regular expression instead of matching a literal substring. Reachability requires Kaleo Workflow update permission; affected Portal builds end at 7.4.3.131, while affected DXP ranges end at update 92 or the specified 2024 quarterly endpoints.

CVSS severity6.9
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Self-ReDoS in affected Liferay Portal 7.4 and Liferay DXP 7.4/2024 releases allows remote authenticated users to hang their browser. BaseRoleType.tsx passed lowercased role-name input to String.match(), compiling it as a regular expression instead of matching a literal substring. Reachability requires Kaleo Workflow update permission; affected Portal builds end at 7.4.3.131, while affected DXP ranges end at update 92 or the specified 2024 quarterly endpoints.

The record

CVE
CVE-2025-43764
Published
Aug 23, 2025
Updated
Aug 23, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-1333, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 23, 2025Record 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=7.4.3.0 <=7.4.3.131

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.3.0 <=7.4.3.131
Liferay · Liferay DXPversion=2024.Q1.1 <=2024.Q1.20; version=2024.Q2.1 <=2024.Q2.13; version=2024.Q3.0 <=2024.Q3.13; version=2024.Q4.0 <=2024.Q4.1; version=7.4.13 <=7.4.13-u92

Published CVSS scores

6.9LiferayCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:H/SC:L/SI:L/SA:N
6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1333Inefficient Regular Expression Complexity
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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