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Vulnerability record · CVE-2021-33813 · published 16 June 2021

CVE-2021-33813: Jdom xml external entity (xxe) vulnerability

JJdom · Jdom

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

7.5 CVSS 3.1 High EPSS 19% · top 2.7% CWE-611 · XML external entity (XXE)
7.5CVSS 3.1 base score, v2 5.0
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
34References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://alephsecurity.com/vulns/aleph-2021003 ExploitThird Party Advisory
https://github.com/hunterhacker/jdom/pull/188 PatchThird Party Advisory
https://github.com/hunterhacker/jdom/releases Release NotesThird Party Advisory
https://lists.apache.org/thread.html/r21c406c7ed88fe340db7dbae75e58355159e6c324037c7d5547bf40b%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r5674106135bb1a6ef57483f4c63a9c44bca85d0e2a8a05895a8f1d89%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r6db397ae7281ead825338200d1f62d2827585a70797cc9ac0c4bd23f%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r845e987b7cd8efe610284958e997b84583f5a98d3394adc09e3482fe%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r89b3800cfabb1e773e49425e5d4239c28a659839a2eca6af3431482e%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r9974f64723875052e02787b2a5eda689ac5247c71b827d455e5dc9a6%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/rbc075a4ac85e7a8e47420b7383f16ffa0af3b792b8423584735f369f%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/rfb7a93e40ebeb1e0068cde0bf3834dcab46bb1ef06d6424db48ed9fd%40%3Cdev.tika.apache.org%
https://lists.debian.org/debian-lts-announce/2021/06/msg00026.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00012.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AH46QHE5GIMT6BL6C3GDTOY
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWFVYTHGILOQXUA7U3SPOER
https://www.oracle.com/security-alerts/cpuapr2022.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Not Applicable
https://alephsecurity.com/vulns/aleph-2021003 ExploitThird Party Advisory
https://github.com/hunterhacker/jdom/pull/188 PatchThird Party Advisory
https://github.com/hunterhacker/jdom/releases Release NotesThird Party Advisory
https://lists.apache.org/thread.html/r21c406c7ed88fe340db7dbae75e58355159e6c324037c7d5547bf40b%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r5674106135bb1a6ef57483f4c63a9c44bca85d0e2a8a05895a8f1d89%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r6db397ae7281ead825338200d1f62d2827585a70797cc9ac0c4bd23f%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r845e987b7cd8efe610284958e997b84583f5a98d3394adc09e3482fe%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r89b3800cfabb1e773e49425e5d4239c28a659839a2eca6af3431482e%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/r9974f64723875052e02787b2a5eda689ac5247c71b827d455e5dc9a6%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/rbc075a4ac85e7a8e47420b7383f16ffa0af3b792b8423584735f369f%40%3Cissues.solr.apache.o
https://lists.apache.org/thread.html/rfb7a93e40ebeb1e0068cde0bf3834dcab46bb1ef06d6424db48ed9fd%40%3Cdev.tika.apache.org%
https://lists.debian.org/debian-lts-announce/2021/06/msg00026.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00012.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AH46QHE5GIMT6BL6C3GDTOY
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWFVYTHGILOQXUA7U3SPOER
https://www.oracle.com/security-alerts/cpuapr2022.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Not Applicable

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Source: NIST National Vulnerability Database (record CVE-2021-33813), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.