medium6.5
CVE-2026-27149
Discourse is an open source discussion platform.
Impact
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, SQL injection in PM tag filtering (`list_private_messages_tag`) allows bypassing tag filter conditions, potentially disclosing unauthorized private message metadata. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Discourse | Discourse | before 2025.12.2 from 2026.1.0 before 2026.1.1 Version 2026.2.0 |