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CVE-2025-3526VulnerabilityPublished

CVE-2025-3526: Liferay Portal · Uncontrolled Resource Consumption

Affects Liferay PortalSource CVE Database V5

0

Not known to be exploited · CVSS 8.7 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Mavencom.liferay/portalpkg:maven/com.liferay/portalOther threatsAffected
  • =7.0.0
  • <=7.4.3.21
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Apply official patches or updates from Liferay as soon as they become available; monitor Liferay’s security advisories closely. 2. Implement web application firewalls (WAFs) with custom rules to detect and block abnormal HTTP request patterns that attempt to inject excessive parameters into sessions. 3. Configure session management settings to limit the size and number of parameters stored per session, if configurable, to prevent excessive memory use. 4. Employ rate limiting and IP reputation filtering at the network perimeter to reduce the risk of automated or volumetric attacks targeting session storage. 5. Monitor server memory usage and session store metrics actively to detect unusual spikes indicative of exploitation attempts. 6. Consider isolating Liferay Portal instances behind reverse proxies that can enforce stricter request validation and parameter size limits. 7. Conduct regular security assessments and penetration testing focusing on session management and resource consumption vectors. 8. Educate development and operations teams about the risks of uncontrolled resource consumption vulnerabilities and best practices for secure session handling.

Description

SessionClicks in Liferay Portal 7.0.0 through 7.4.3.21, and Liferay DXP 7.4 GA through update 9, 7.3 GA through update 25, and older unsupported versions does not restrict the saving of request parameters in the HTTP session, which allows remote attackers to consume system memory leading to denial-of-service (DoS) conditions via crafted HTTP requests.

References

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