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CVE-2021-41411 drools

Affected softwaredrools
Severity9.8 Critical CVSS 3.1 2 scores
Fixed in7.60.0.Final
WeaknessXML external entity (XXE) (CWE-611)
Published16 Jun 2022
Updated17 Jun 2026

Description

drools <=7.59.x is affected by an XML External Entity (XXE) vulnerability in KieModuleMarshaller.java. The Validator class is not used correctly, resulting in the XXE injection vulnerability.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 4 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 1.3% chance in 30 days

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

  • Protection full XXE
  • Action available security rule
  • Review automated Inferred
  • Record active
Decided by A vulnerability class already blocked by an ARMR security rule
Finding Protected by Waratek's ARMR xxe security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-611: XML External Entity Reference.
Candidate fix https://github.com/kiegroup/drools/pull/3808 : a pull request: the change under review

How to mitigate CVE-2021-41411

Upgrade drools to 7.60.0.Final or later. Until you can, Waratek RASP blocks exploitation with its XXE rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

CVSS

9.8 CRITICAL v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H NVD Primary published
CVSS 2.0 7.5 none AV:N/AC:L/Au:N/C:P/I:P/A:P NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update January 2023 ↗ CPU 2023-Q1 Oracle Communications Applications / Rulesets (XStream) (7.4.0, 7.4.1, 7.4.2, 7.5.0)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Communications Applications Rulesets (XStream) 7.4.0, 7.4.1, 7.4.2, 7.5.0 7.4.0 · 7.4.1 · 7.4.2 · 7.5.0

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.drools:drools-core 0 7.60.0.Final unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
osv org.drools drools-core generic < 7.60.0
nvd redhat drools generic < 7.6.0

References

URLTags
https://github.com/kiegroup/drools/pull/3808 pr
https://github.com/apache/incubator-kie-drools/pull/3808 WEB
https://github.com/kiegroup/drools PACKAGE

Timeline

Published2022-06-16By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.