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Advisory record · GHSA-q95h-87j6-273x

Liferay Portal ComboServlet denial of service via large file combination

CVSS 6.9 MediumEPSS 0.0055 · 46th percentile

Published by the GitHub Advisory Database at 24 Oct 2025, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.liferay.portal:com.liferay.portal.implMaven<97.0.097.0.0
Identifiers
GHSA-q95h-87j6-273x · CVE-2025-62254
Weakness (CWE)
CWE-22
Tags
Published
24 Oct 2025
Updated
15 Nov 2025

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Liferay Portal's com.liferay.portal.impl package is vulnerable in versions before 97.0.0, including Liferay Portal 7.4.0 through 7.4.3.111 and Liferay DXP 2023.Q4.0 through 2023.Q4.2, 2023.Q3.1 through 2023.Q3.5, 7.4 GA through update 92, and 7.3 GA through update 35. The ComboServlet does not limit how many files or how large a combined response it will produce. A remote attacker can send a crafted URL query string to create very large responses and cause a denial of service. Upgrade to 97.0.0 or later.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.9 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CNA (Liferay)
  • CISA KEV Not listed.
  • EPSS 0.0055, the 46th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:09 UTC First seen by agentprime
  2. 31 Oct 2026, 15:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.