Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2016-4434

Improper Restriction of XML External Entity Reference

Published: Sep 30, 2017 | Modified: Apr 20, 2025
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
5.8 MODERATE
AV:N/AC:M/Au:N/C:P/I:N/A:P
RedHat/V3
5.4 MODERATE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2016-4434
CWEhttps://cwe.mitre.org/data/definitions/611.html

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.

Weakness

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

Affected Software

NameVendorStart VersionEnd Version
TikaApache1.12 (including)1.12 (including)
Red Hat JBoss BPMS 6.4RedHat*
Red Hat JBoss BRMS 6.4RedHat*
Red Hat JBoss Data Virtualization 6.3RedHattika-core*
TikaUbuntuartful*
TikaUbuntubionic*
TikaUbuntucosmic*
TikaUbuntuesm-apps/bionic*
TikaUbuntuesm-apps/xenial*
TikaUbuntuwily*
TikaUbuntuxenial*
TikaUbuntuyakkety*
TikaUbuntuzesty*

Potential Mitigations

References

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