Xiangfan Wu

**Name of the Vulnerable Software and Affected Versions** Apache Cocoon versions all versions **Description** The issue is related to the incorrect usage of seeds in the pseudo-random number generator (PRNG) in Apache Cocoon. When a continuation is created, it gets a random identifier. Because the random number generator used to generate these identifiers was seeded with the startup time, it may not have been sufficiently unpredictable, and an attacker could use this to guess continuation ids and look up continuations they should not have had access to. **Recommendations** As a mitigation, enable the "session-bound-continuations" option to make sure continuations are not shared across sessions. Restrict access to the instance to trusted users. Find an alternative to Apache Cocoon, as the project is retired and no fix will be released.