CVE Vulnerabilities

CVE-2017-9096

Improper Restriction of XML External Entity Reference

Published: Nov 08, 2017 | Modified: Apr 20, 2025
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.0/AV:N/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
RedHat/V3
6.5 MODERATE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Ubuntu

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

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

Name Vendor Start Version End Version
Itext Itextpdf * 5.5.12 (excluding)
Itext Itextpdf 7.0.0 (including) 7.0.0 (including)
Itext Itextpdf 7.0.1 (including) 7.0.1 (including)
Itext Itextpdf 7.0.2 (including) 7.0.2 (including)

Potential Mitigations

References