Disabled Hostname Verification in Opencast
Opencast before version 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests.
Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks.
Patches
This problem is fixed in Opencast 7.9 and Opencast 8.9
Self-Signed Certificates
Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate e.g. from Let's Encrypt.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.opencastproject:opencast-kernel | < 7.9, >= 8.0, < 8.9 | 7.9, 8.9 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-297- Platform
- Java / Kotlin (Maven)
- Package
org.opencastproject:opencast-kernel- Disclosed
- 08.12.2020
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-44cw-p2hm-gpf6 - CC BY 4.0
Vulnerability history: org.opencastproject:opencast-kernel
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
- 01.2020 07.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
- Medium 4
Disclosures per year
- 2020: 4
- 2021: 1
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 1
- 2026: 0
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Disabled Hostname Verification in Opencast this entry
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