CVE-2023-28111 Information

Description

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the beta and tests-passed branches attackers are able to bypass Discourse’s server-side request forgery (SSRF) protection for private IPv4 addresses by using a IPv4-mapped IPv6 address. The issue is patched in the latest beta and tests-passed version of Discourse. version 3.1.0.beta3 of the beta and tests-passed branches. There are no known workarounds.

Reference

https://github.com/discourse/discourse/pull/20710 https://github.com/discourse/discourse/security/advisories/GHSA-26h3-8ww8-v5fc https://github.com/discourse/discourse/commit/fd16eade7fcc6bba4b71e71106a2eb13cdfdae4a