CVE-2020-26234

Opencast before versions 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. This problem is fixed in Opencast 7.9 and Opencast 8.8 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.

• CWE-346
• CWE-346

• https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfcPatch, Third Party Advisory
• https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6Third Party Advisory
• https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfcPatch, Third Party Advisory
• https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6Third Party Advisory

Published

Dec 8, 2020

Last Modified

Jun 17, 2026

Status

Modified

• Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-26229TYPO3 is an open source PHP based web content management sys…3.7
• CVE-2020-2623Vulnerability in the Enterprise Manager Base Platform produc…6
• CVE-2020-26230Radar COVID is the official COVID-19 exposure notification a…5.3
• CVE-2020-26231October is a free, open-source, self-hosted CMS platform bas…6.7
• CVE-2020-26232Jupyter Server before version 1.0.6 has an Open redirect vul…5.4
• CVE-2020-26233Git Credential Manager Core (GCM Core) is a secure Git crede…7.3
• CVE-2020-26235In Rust time crate from version 0.2.7 and before version 0.2…5.3
• CVE-2020-26236In ScratchVerifier before commit a603769, an attacker can hi…7.5
• CVE-2020-26237Highlight.js is a syntax highlighter written in JavaScript. …8.7
• CVE-2020-26238Cron-utils is a Java library to parse, validate, migrate cro…8.1
• CVE-2020-26239Scratch Addons is a WebExtension that supports both Chrome a…5.4
• CVE-2020-2624Vulnerability in the Enterprise Manager Base Platform produc…6