Improper Validation of Certificate with Host Mismatch in Shibboleth Identity Provider and OpenSAML Java
The (1) HttpResource and (2) FileBackedHttpResource implementations in Shibboleth Identity Provider (IdP) before 2.4.1 and OpenSAML Java 2.6.2 do not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | edu.internet2.middleware:shibboleth-identityprovider | < 2.4.1 | 2.4.1 |
| Java / Kotlin (Maven) | org.opensaml:opensaml | < 2.6.2 | 2.6.2 |
References
- CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-297- Platform
- Java / Kotlin (Maven)
- Package
edu.internet2.middleware:shibboleth-identityprovider, org.opensaml:opensaml- Disclosed
- 14.05.2022
- Updated
- 11.10.2026 11:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-rm7v-gqfg-p2wc - CC BY 4.0
Vulnerability history: edu.internet2.middleware:shibboleth-identityprovider
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 05.2022 05.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 3
Disclosures per year
- 2022: 3
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Improper Validation of Certificate with Host Mismatch in Shibboleth Identity Provider and OpenSAML Java this entry
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