CVE-2026-28218 — Discourse's Fail-Open Access Control in Data Explorer Plugin Allows Unauthorized SQL Query Execution

CVE-2026-28218

Discourse's Fail-Open Access Control in Data Explorer Plugin Allows Unauthorized SQL Query Execution PUBLISHED

Description (CNA)

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, fail-open access control in Data Explorer plugin allows any authenticated user to execute SQL queries that have no explicit group assignments, including built-in system queries. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. As a workaround, either explicitly set group permissions on each Data Explorer query that doesn't have permissions, or disable discourse-data-explorer plugin.

Affected (CNA)

Vendor / product	Versions
discourse / discourse	affected < 2025.12.2; affected >= 2026.1.0-latest, < 2026.1.1; affected >= 2026.2.0-latest, < 2026.2.0

CWE

CWE-284

References

https://github.com/discourse/discourse/security/advisories/GHSA-jxrc-72mr-mfh5

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.