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OpenAdvisories
High · 7.5 CVE-2023-47120 EUVD-2023-51263

Discourse DoS through Onebox favicon URL

Published Nov 10, 2023 · Updated Sep 3, 2024 · Assigned by GitHub_M

Description

Discourse is an open source platform for community discussion. 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, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.

Affected products

VendorProductAffectedFixed
discourse discourse >= 3.1.0, < 3.1.3, >= 3.1.0.beta6, < 3.2.0.beta3 —

References