Discourse is an open-source discussion platform. Prior to version 3.2.3 on the stable branch and version 3.3.0.beta4 on the beta and tests-passed branches, a malicious actor could get the FastImage library to redirect requests to an internal Discourse IP. This issue is patched in version 3.2.3 on the stable branch and version 3.3.0.beta4 on the beta and tests-passed branches. No known workarounds are available.
| Software | From | Fixed in |
|---|---|---|
| discourse / discourse | 3.3.0-beta3 | 3.3.0-beta3.x |
| discourse / discourse | 3.3.0-beta2 | 3.3.0-beta2.x |
| discourse / discourse | 3.3.0-beta1 | 3.3.0-beta1.x |
| discourse / discourse | - | 3.2.3 |
| discourse / discourse | - | 3.3.0 |