Advisory record · GHSA-2jc4-r94c-rp7h

Apache Ivy External Entity Reference vulnerability

CVSS 8.2 HighEPSS 0.020 · 80th percentile

Published by the GitHub Advisory Database at 21 Aug 2023, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.ivy:ivyMaven<2.5.22.5.2
Identifiers
GHSA-2jc4-r94c-rp7h · CVE-2022-46751
Weakness (CWE)
CWE-91 · CWE-611
Published
21 Aug 2023
Updated
10 Sept 2026

Machine-written summary

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

Apache Ivy versions before 2.5.2 are affected. When Ivy parses XML files, including its own configuration, Ivy files, or Maven POMs, it downloads external document type definitions and expands entity references in them, which is an XML external entity issue. An attacker who can supply such an XML file to Ivy could use this to exfiltrate data, reach resources the machine running Ivy can access, or disrupt Ivy's execution. Upgrade to Ivy 2.5.2 or later. Users unable to upgrade can restrict external DTD processing using Java system properties described in Oracle's JAXP Security Guide.

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
8.2 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.020, the 80th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:18 UTC First seen by agentprime
  2. 31 Oct 2026, 14:18 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.