Jenkins SAML Single Sign On(SSO) Plugin missing hostname validation
Jenkins SAML Single Sign On(SSO) Plugin 2.0.2 and earlier does not perform hostname validation when connecting to miniOrange or the configured IdP to retrieve SAML metadata.
This lack of validation could be abused using a man-in-the-middle attack to intercept these connections.
SAML Single Sign On(SSO) Plugin 2.1.0 performs hostname validation when connecting to miniOrange or the configured IdP to retrieve SAML metadata.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | io.jenkins.plugins:miniorange-saml-sp | < 2.1.0 | 2.1.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-345, CWE-346- Platform
- Java / Kotlin (Maven)
- Package
io.jenkins.plugins:miniorange-saml-sp- Disclosed
- 16.05.2023
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-6v6h-rw43-97fh - CC BY 4.0
Vulnerability history: io.jenkins.plugins:miniorange-saml-sp
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
- 7
- First → latest
- 05.2023 07.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 5
Disclosures per year
- 2023: 7
- 2024: 0
- 2025: 0
- 2026: 0
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Jenkins SAML Single Sign On(SSO) Plugin missing hostname validation this entry
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