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Advisory record · GHSA-65r4-943x-97jj

jsoup XmlTreeBuilder vulnerable to memory exhaustion through deeply nested namespace declarations

CVSS 8.7 HighEPSS 0.0053 · 44th percentile

Published by the GitHub Advisory Database at 20 Aug 2026, 18:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.jsoup:jsoupMaven<1.23.21.23.2
Identifiers
GHSA-65r4-943x-97jj · CVE-2026-75140
Weakness (CWE)
CWE-770
Tags
Published
20 Aug 2026
Updated
5 Oct 2026

Machine-written summary

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

jsoup versions before 1.23.2 have an uncontrolled resource consumption flaw in XmlTreeBuilder. A remote attacker can supply a deeply nested XML document with uniquely namespaced elements, exhausting JVM heap memory and terminating the application with an OutOfMemoryError. Upgrade to jsoup 1.23.2.

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
8.7 High 4.0 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 CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0053, the 44th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:16 UTC First seen by agentprime
  2. 31 Oct 2026, 14:16 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.