Low severity2.7NVD Advisory· Published Feb 26, 2026· Updated Jun 17, 2026
CVE-2026-27153
CVE-2026-27153
Description
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in can_export_entity?. The method allowed moderators to export any entity not explicitly blocked instead of restricting to an explicit allowlist. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.
Affected products
5cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*range: <2025.12.2
- cpe:2.3:a:discourse:discourse:2026.2.0:*:*:*:latest:*:*:*
- (no CPE)range: <2025.12.2, <2026.1.1, <2026.2.0
- (no CPE)range: < 2025.12.2
Patches
Vulnerability mechanics
References
1- github.com/discourse/discourse/security/advisories/GHSA-5cp2-jq8m-33mfnvdVendor Advisory
News mentions
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