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Vulnerability record · CVE-2016-4434 · published 30 September 2017

CVE-2016-4434: Apache tika xml external entity (xxe) vulnerability

Apache · Tika

Apache Tika before 1.13 does not properly initialize the XML parser or choose handlers, which might allow remote attackers to conduct XML External Entity (XXE) attacks via vectors involving (1) spreadsheets in OOXML files and (2) XMP metadata in PDF and other file formats, a related issue to CVE-2016-2175.

7.8 CVSS 3.0 High EPSS 3.6% · top 11.0% CWE-611 · XML external entity (XXE)
7.8CVSS 3.0 base score, v2 6.8
3.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Apache Tika before 1.13 does not properly initialize the XML parser or choose handlers, which might allow remote attackers to conduct XML External Entity (XXE) attacks via vectors involving (1) spreadsheets in OOXML files and (2) XMP metadata in PDF and other file formats, a related issue to CVE-2016-2175.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://rhn.redhat.com/errata/RHSA-2017-0248.html
http://rhn.redhat.com/errata/RHSA-2017-0249.html
http://rhn.redhat.com/errata/RHSA-2017-0272.html
http://www.securityfocus.com/archive/1/538500/100/0/threaded
https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apac
https://mail-archives.apache.org/mod_mbox/tika-dev/201605.mbox/%3C1705136517.1175366.1464278135251.JavaMail.yahoo%40mail Mailing ListVendor Advisory
http://rhn.redhat.com/errata/RHSA-2017-0248.html
http://rhn.redhat.com/errata/RHSA-2017-0249.html
http://rhn.redhat.com/errata/RHSA-2017-0272.html
http://www.securityfocus.com/archive/1/538500/100/0/threaded
https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apac
https://mail-archives.apache.org/mod_mbox/tika-dev/201605.mbox/%3C1705136517.1175366.1464278135251.JavaMail.yahoo%40mail Mailing ListVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-4434), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.