CVE-2013-6440: INTERNET2 Opensaml

Medium severity, CVSS 5.0. EPSS: 2.8% chance of exploitation in the next 30 days.

The (1) BasicParserPool, (2) StaticBasicParserPool, (3) XML Decrypter, and (4) SAML Decrypter in Shibboleth OpenSAML-Java before 2.6.1 set the expandEntityReferences property to true, which allows remote attackers to conduct XML external entity (XXE) attacks via a crafted XML DOCTYPE declaration.

Affected products

• INTERNET2 Opensaml: version 2.0 only; version 2.1.0 only; version 2.2.0 only
• Shibboleth Opensaml: up to and including 2.6.0; version 2.4.0 only; version 2.4.1 only; version 2.4.2 only; version 2.4.3 only; version 2.5.0 only; …

Published 2014-02-14. Last modified 2026-06-17.