Session Fixation Affecting org.opencastproject:base package, versions [,19.7)[20.0,20.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGOPENCASTPROJECT-19963959
- published20 Sept 2026
- disclosed17 Sept 2026
- creditkah-ja
Introduced: 17 Sep 2026
NewCVE-2026-77614 (opens in a new tab)How to fix?
Upgrade org.opencastproject:base to version 19.7, 20.2 or higher.
Overview
org.opencastproject:base is a free and open source solution for automated video capture and distribution at scale.
Affected versions of this package are vulnerable to Session Fixation via URL-based jsessionid handling in the Spring Security HTTP configuration in etc/security/mh_default_org.xml. An attacker can hijack a victim’s authenticated session by sending a crafted link with an attacker-chosen ;jsessionid= value and luring the victim to log in through it. Because the application accepts the session id from the URL when no cookie is present and keeps that identifier after authentication, the attacker’s chosen session becomes bound to the victim’s logged-in account. This lets an unauthenticated attacker ride the victim’s session after login, including taking over an administrator account and accessing the victim’s data and actions.