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Advisory record · GHSA-826p-4gcg-35vw

GeoTools has XML External Entity (XXE) Processing Vulnerability in XSD schema handling

CVSS 9.9 CriticalCritical

Critical, because:

  • CVSS score 9.9: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 9 Jun 2025, 23:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.geotools:gt-xsd-coreMaven>=33.0, <33.1 || >=32.0, <32.3 || >=29.0, <31.7 || <28.6.133.1, 32.3, 31.7, 28.6.1
org.geotools:gt-wfs-ngMaven>=33.0, <33.1 || >=32.0, <32.3 || >=29.0, <31.7 || <28.6.133.1, 32.3, 31.7, 28.6.1
Identifiers
GHSA-826p-4gcg-35vw
Weakness (CWE)
CWE-611
Tags
Published
9 Jun 2025
Updated
4 Feb 2026

Machine-written summary

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

GeoTools gt-xsd-core and gt-wfs-ng are vulnerable to XML External Entity (XXE) processing in XSD schema handling in versions >=33.0 before 33.1, >=32.0 before 32.3, >=29.0 before 31.7, and before 28.6.1. The source does not give full details of the attacker's requirements, but XML parsing that references an external schema can be abused. Upgrade gt-xsd-core and gt-wfs-ng to 33.1, 32.3, 31.7, or 28.6.1, depending on your release line.

Written 3 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
9.9 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:21 UTC First seen by agentprime
  2. 31 Oct 2026, 14:21 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.