Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an attacker can grant access to a private message topic through invites even after they lose access to that PM. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Project Subscriptions

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Fixes

Solution

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Workaround

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History

Sat, 21 Mar 2026 05:30:00 +0000

Type Values Removed Values Added
Description Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an attacker can grant access to a private message topic through invites even after they lose access to that PM. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.
Title PM access granted through invites after access revocation
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-20T23:08:11.929Z

Reserved: 2026-03-19T18:45:22.433Z

Link: CVE-2026-33424

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-21T00:16:26.853

Modified: 2026-03-21T00:16:26.853

Link: CVE-2026-33424

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses