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Fencer Vulns
high 7.5

CVE-2021-33813 in the critical feed json

XML External Entity (XXE) Injection in JDOM

published 2021-06-16 5 y ago modified 2026-09-08 2 mo ago also BIT-solr-2021-33813 , EUVD-2021-1429 , GHSA-2363-cqg2-863c

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
19.4%
EPSS 19.4% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

An XXE issue in SAXBuilder in JDOM through 2.0.6 allows attackers to cause a denial of service via a crafted HTTP request.

Patch / fix

  • maven org.jdom:jdom2 2.0.6.1
  • bitnami solr 8.8.2, 8.9.1
  • libjdom1-java Debian 14, Debian 13, Debian 12 1.1.3-2.1
  • libjdom2-java Debian 14, Debian 13, Debian 12 2.0.6-2.1

debian advisories DEBIAN-CVE-2021-33813

  • xom SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +13 more 1.3.9-150200.5.3.3
  • jdom SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +13 more 1.1.3-150200.12.8.2
  • dom4j SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +13 more 2.1.4-150200.12.10.2
  • jaxen SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +13 more 2.0.0-150200.5.3.1
  • junit SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +12 more 4.13.2-150200.3.15.2
  • junit5 SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6, openSUSE Leap 15.5 5.10.2-150200.3.10.3
  • saxpath openSUSE Leap 15.6, openSUSE Leap 15.5 1.0-150200.5.3.3
  • hamcrest SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +12 more 2.2-150200.12.17.2

suse advisories SUSE-SU-2024:1874-1SUSE-SU-2024:1871-1SUSE-SU-2022:3547-1SUSE-SU-2021:2293-1

  • jdom2 openSUSE Tumbleweed 2.0.6-3.2
  • jdom openSUSE Tumbleweed 1.1.3-40.1
  • jdom2 openSUSE Leap 15.2 2.0.6-lp152.2.3.1
  • jdom2 openSUSE Leap 15.3 2.0.6-3.3.1

opensuse advisories openSUSE-SU-2024:10877-1openSUSE-SU-2024:13180-1openSUSE-SU-2021:1031-1openSUSE-SU-2021:2293-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-33813 updated cvss 7.5

jdom: XXE allows attackers to cause a DoS via a crafted HTTP request

  • Red Hat BPM Suite 6 jdom, jdom2 Red Hat Enterprise Linux 6 jdom, jdom-demo, jdom-javadoc Red Hat Enterprise Linux 7 jdom, jdom-demo, jdom-javadoc Red Hat JBoss A-MQ 6 jdom Red Hat JBoss BRMS 5 jdom, jdom2 Red Hat JBoss BRMS 6 jdom
    +7 more products
    Red Hat JBoss Data Grid 7 jdom Red Hat JBoss Data Virtualization 6 jdom2 Red Hat JBoss Enterprise Application Platform 6 jdom Red Hat JBoss Fuse 6 jdom, jdom2 Red Hat JBoss Fuse Service Works 6 jdom Red Hat JBoss Operations Network 3 jdom Red Hat JBoss SOA Platform 5 jdom
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 openshift4/ose-metering-hive, openshift4/ose-metering-hadoop Red Hat Software Collections rh-maven36-jdom, rh-maven36-jdom2, rh-maven36-jdom-demo, rh-maven36-jdom-javadoc, rh-maven36-jdom2-javadoc
    affected: no fix planned “Will not fix”
  • Red Hat Fuse 7.11
    fixed: vendor fix RHSA-2022:5532
  • Red Hat RHDM 7.12.1
    fixed: vendor fix RHSA-2022:1110
  • Red Hat RHINT Camel-K 1.6.4
    fixed: vendor fix RHSA-2022:1029
  • Red Hat RHPAM 7.12.1
    fixed: vendor fix RHSA-2022:1108

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

19.44% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • alephsecurity.com https://alephsecurity.com/vulns/aleph-2021003 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.jdom:jdom2
<2.0.6.1
2.0.6.1
maven org.jdom:jdom
<=2.0.2
 no fix listed
bitnami solr
>=8.8.1, <8.8.2
>=8.9.0, <8.9.1
8.8.2
8.9.1

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.