| Package | Affected versions | Patched versions |
|---|---|---|
| edu.internet2.middleware:shibboleth-identityprovider | < 2.4.4 | 2.4.4 |
| org.opensaml:opensaml | < 2.6.5 | 2.6.5 |
| identity provider | ≤ 2.4.3 | |
| opensaml java | ≤ 2.6.4 |
The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.
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