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Advisory record · GHSA-hxjp-q6c3-38fx

XML External Entity Reference in Apache NiFi

CVSS 7.5 HighEPSS 0.014 · 72nd percentile

Published by the GitHub Advisory Database at 10 Feb 2023, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.nifi:nifi-ccda-processorsMaven>=1.2.0, <1.20.01.20.0
Identifiers
GHSA-hxjp-q6c3-38fx · BIT-nifi-2023-22832 · CVE-2023-22832
Weakness (CWE)
CWE-611
Tags
Published
10 Feb 2023
Updated
15 Sept 2025

Machine-written summary

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

Apache NiFi's nifi-ccda-processors package, versions 1.2.0 through 1.19.1, is vulnerable because the ExtractCCDAAttributes Processor does not restrict XML External Entity references. An attacker who can supply a malicious XML document to a flow that uses this processor can exploit the XXE flaw, though the source gives few details on the exact impact. Upgrade to nifi-ccda-processors 1.20.0, which disables Document Type Declarations and blocks external entity resolution in this processor.

Written 7 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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.014, the 72nd percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:10 UTC First seen by agentprime
  2. 31 Oct 2026, 15:10 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.