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Advisory record · GHSA-9vx8-f5c4-862x

XML External Entity (XXE) vulnerability in apoc.import.graphml

CVSS 5.9 Medium

Published by the GitHub Advisory Database at 24 Feb 2023, 17:39 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.neo4j.procedure:apocMaven<4.4.0.14 || >=5.0.0, <5.5.04.4.0.14, 5.5.0
Identifiers
GHSA-9vx8-f5c4-862x
Weakness (CWE)
CWE-611
Tags
Published
24 Feb 2023
Updated
28 Nov 2024

Machine-written summary

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

GHSA-9vx8-f5c4-862x concerns the apoc.import.graphml procedure in the APOC core plugin for Neo4j, in Maven package org.neo4j.procedure:apoc versions below 4.4.0.14 and from 5.0.0 to below 5.5.0. An attacker who can run this procedure can exploit an XML external entity flaw to read local files and send requests, and can crash the server with malformed XML. Upgrade to 4.4.0.14 or 5.5.0, or restrict which procedures can run by using the procedure allowlist setting.

Written 8 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
5.9 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 15:13 UTC First seen by agentprime
  2. 31 Oct 2026, 15:13 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.