Summary
Potentially sensitive data exposure in Symfony Web Socket Bundle
Workarounds
Upgrade to 1.10.4, 2.6.1, and 3.3.0
Note, the 1.x branch is considered end of support as of July 1, 2020.
For more information
If you have any questions or comments about this advisory:
- Open an issue in this repository
Impact
Inside Gos\Bundle\WebSocketBundle\Server\App\Dispatcher\TopicDispatcher::onPublish(), messages are arbitrarily broadcasted to the related Topic if Gos\Bundle\WebSocketBundle\Server\App\Dispatcher\TopicDispatcher::dispatch() does not succeed. The dispatch() method can be considered to not succeed if (depending on the version of the bundle) the callback defined on a topic route is misconfigured, a Gos\Bundle\WebSocketBundle\Topic\TopicInterface implementation is not found for the callback, a topic which also implements Gos\Bundle\WebSocketBundle\Topic\SecuredTopicInterface rejects the connection, or an Exception is unhandled. This can result in an unintended broadcast to the websocket server potentially with data that should be considered sensitive.
GHSA-WWGF-3XP7-CXJ4 has a CVSS score of 5.9 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.10.4, 2.6.1, 3.3.0); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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In 1.10.4, 2.6.1, and 3.3.0, Gos\Bundle\WebSocketBundle\Server\App\Dispatcher\TopicDispatcher::onPublish() has been changed to no longer broadcast an event's data if Gos\Bundle\WebSocketBundle\Server\App\Dispatcher\TopicDispatcher::dispatch() fails.
Frequently Asked Questions
- What is GHSA-WWGF-3XP7-CXJ4? GHSA-WWGF-3XP7-CXJ4 is a medium-severity security vulnerability in gos/web-socket-bundle (composer), affecting versions < 1.10.4. It is fixed in 1.10.4, 2.6.1, 3.3.0.
- How severe is GHSA-WWGF-3XP7-CXJ4? GHSA-WWGF-3XP7-CXJ4 has a CVSS score of 5.9 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of gos/web-socket-bundle are affected by GHSA-WWGF-3XP7-CXJ4? gos/web-socket-bundle (composer) versions < 1.10.4 is affected.
- Is there a fix for GHSA-WWGF-3XP7-CXJ4? Yes. GHSA-WWGF-3XP7-CXJ4 is fixed in 1.10.4, 2.6.1, 3.3.0. Upgrade to this version or later.
- Is GHSA-WWGF-3XP7-CXJ4 exploitable, and should I be worried? Whether GHSA-WWGF-3XP7-CXJ4 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-WWGF-3XP7-CXJ4 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-WWGF-3XP7-CXJ4?
- Upgrade
gos/web-socket-bundleto 1.10.4 or later - Upgrade
gos/web-socket-bundleto 2.6.1 or later - Upgrade
gos/web-socket-bundleto 3.3.0 or later
- Upgrade