Spring Security Advisories

CVE-2015-0201 Insufficiently random session id in Java SockJS client

LOW | MARCH 06, 2015 | CVE-2015-0201


Session id generation in the Java SockJS client is not sufficiently secure and could allow a user to send messages to another user’s session.

Note that this only affects users of the Java SockJS client, which generates its own session id. It does not affect browser clients even if they’re connecting to the same server.

Furthermore, since SockJS is a transport layer, when using a higher level messaging protocol on top such as STOMP over WebSocket with the spring-messaging module, application-level security may already be getting applied to STOMP messages and that can neutralize the impact of any potential attacks.

Affected Spring Products and Versions

  • Spring Framework 4.1.0 to 4.1.4


Users of affected versions should apply the following mitigation:

  • Users of 4.1.x should upgrade to 4.1.5 or later


Philippe Arteau found and responsibly reported the problem to Pivotal.


  • 2015-Mar-06: Initial vulnerability report published.

Get ahead

VMware offers training and certification to turbo-charge your progress.

Learn more

Get support

Spring Runtime offers support and binaries for OpenJDK™, Spring, and Apache Tomcat® in one simple subscription.

Learn more

Upcoming events

Check out all the upcoming events in the Spring community.

View all