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Advisory record · GHSA-mw3v-mmfw-3x2g

OpenSearch is vulnerable to DoS via complex query_string inputs

CVSS 8.3 HighEPSS 0.0073 · 54th percentile

Published by the GitHub Advisory Database at 25 Nov 2025, 21:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.opensearch:opensearch-commonMaven>=3.0.0, <3.3.0 || <2.19.43.3.0, 2.19.4
Identifiers
GHSA-mw3v-mmfw-3x2g · CVE-2025-9624
Weakness (CWE)
CWE-674
Tags
Published
25 Nov 2025
Updated
10 Sept 2026

Machine-written summary

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

OpenSearch (org.opensearch:opensearch-common) versions 3.0.0 through 3.2.0 and versions below 2.19.4 are vulnerable. An attacker who can submit queries can send complex query_string inputs to cause a denial of service. The source gives few details. Upgrade to version 3.3.0 or 2.19.4, depending on the release line in use.

Written 2 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
8.3 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H CNA (Fluid Attacks)
  • CISA KEV Not listed.
  • EPSS 0.0073, the 54th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 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.