CVE-2023-47120

Summary

CVE-2023-47120 is a vulnerability affecting Discourse, an open-source community discussion platform. In versions 3.1.0 through 3.1.2 of the stable branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the beta and tests-passed branches, a crafted site with an unusually long favicon URL and multiple posts can cause Redis memory depletion. This issue poses a serious threat as it can lead to denial-of-service (DoS) attacks and potential crashes. The vulnerability has been mitigated through patches in version 3.1.3 of the stable branch and version 3.2.0.beta3 of the beta and tests-passed branches. Unfortunately, there are currently no known workarounds for users unable to update to the patched versions.

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