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CVE-2026-77614

8.8 · HIGH

Opencast is a free, open-source platform to support the management of educational audio and video content.

Published Sep 17, 2026CWE-384EPSS 0.55%

Overview

CVE-2026-77614 is a high-severity vulnerability. It was published on September 17, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to versions 19.7 and 20.2, the default security configuration in etc/security/mh_default_org.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does not replace it when the victim logs in. An unauthenticated attacker can send a crafted link to a victim whose browser has no active Opencast session cookie, wait for the victim to authenticate, and then reuse the known identifier as the victim's authenticated session. This can expose the victim's data and actions and can produce full administrative account takeover when the victim is an administrator. This issue is fixed in versions 19.7 and 20.2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/opencast/opencast/commit/c36652250a026afb7cf78b663950c702669f1d3fGitHubgithub.com/opencast/opencast/commit/ff84128c9b3bcbd79c28192d25929dab8faf185fGitHubgithub.com/opencast/opencast/releases/tag/19.7GitHubgithub.com/opencast/opencast/releases/tag/20.2GitHubgithub.com/opencast/opencast/security/advisories/GHSA-6f53-jp7x-gg7pGitHubgithub.com/opencast/opencast/security/advisories/GHSA-6f53-jp7x-gg7p

How CyberStrike helps

Frequently asked questions

What is CVE-2026-77614?

CVE-2026-77614 is a high-severity vulnerability. It was published on September 17, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-77614?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-77614?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-77614?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-77614 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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