CVE-2022-21684

Discourse is an open source discussion platform. Versions prior to 2.7.13 in `stable`, 2.8.0.beta11 in `beta`, and 2.8.0.beta11 in `tests-passed` allow some users to log in to a community before they should be able to do so. A user invited via email to a forum with `must_approve_users` enabled is going to be automatically logged in, bypassing the check that does not allow unapproved users to sign in. They will be able to do everything an approved user can do. If they logout, they cannot log back in. This issue is patched in the `stable` version 2.7.13, `beta` version 2.8.0.beta11, and `tests-passed` version 2.8.0.beta11. One may disable invites as a workaround. Administrators can increase `min_trust_level_to_allow_invite` to reduce the attack surface to more trusted users.

• CWE-287
• CWE-287

• https://github.com/discourse/discourse/commit/584c6a2e8bc705072b09a9c4b55126d6f8ed4ad2Patch, Third Party Advisory
• https://github.com/discourse/discourse/security/advisories/GHSA-p63q-jp48-h8xhPatch, Third Party Advisory
• https://meta.discourse.org/t/invite-redemption-allowed-user-to-access-forum-before-approval/214328Issue Tracking, Patch, Vendor Advisory
• https://github.com/discourse/discourse/commit/584c6a2e8bc705072b09a9c4b55126d6f8ed4ad2Patch, Third Party Advisory
• https://github.com/discourse/discourse/security/advisories/GHSA-p63q-jp48-h8xhPatch, Third Party Advisory
• https://meta.discourse.org/t/invite-redemption-allowed-user-to-access-forum-before-approval/214328Issue Tracking, Patch, Vendor Advisory

Published

Jan 13, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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