CVE-2026-45780

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, EventSerializer could expose invited group names, sample invitees, and attendance statistics to users who could view the topic but were not entitled to view the private event invitee list. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2026.6.0:*:*:*:latest:*:*:*

History

14 Jul 2026, 20:43

Type Values Removed Values Added
First Time Discourse discourse
Discourse
CPE cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2026.6.0:*:*:*:latest:*:*:*
References () https://github.com/discourse/discourse/commit/37969503f20369eb1712b7b88daedcfb4f63f5f1 - () https://github.com/discourse/discourse/commit/37969503f20369eb1712b7b88daedcfb4f63f5f1 - Patch
References () https://github.com/discourse/discourse/commit/4d46638041b5f3d1e1f7f6f6f19c1df3bd65a586 - () https://github.com/discourse/discourse/commit/4d46638041b5f3d1e1f7f6f6f19c1df3bd65a586 - Patch
References () https://github.com/discourse/discourse/commit/6457ab71f36a2d1440fe96af0a2593897844b023 - () https://github.com/discourse/discourse/commit/6457ab71f36a2d1440fe96af0a2593897844b023 - Patch
References () https://github.com/discourse/discourse/commit/7deb4b6963442569357b41e61febe37594e5e730 - () https://github.com/discourse/discourse/commit/7deb4b6963442569357b41e61febe37594e5e730 - Patch
References () https://github.com/discourse/discourse/releases/tag/v2026.1.5 - () https://github.com/discourse/discourse/releases/tag/v2026.1.5 - Release Notes
References () https://github.com/discourse/discourse/releases/tag/v2026.4.2 - () https://github.com/discourse/discourse/releases/tag/v2026.4.2 - Release Notes
References () https://github.com/discourse/discourse/releases/tag/v2026.5.1 - () https://github.com/discourse/discourse/releases/tag/v2026.5.1 - Release Notes
References () https://github.com/discourse/discourse/releases/tag/v2026.6.0 - () https://github.com/discourse/discourse/releases/tag/v2026.6.0 - Release Notes
References () https://github.com/discourse/discourse/security/advisories/GHSA-22v7-6wgj-g9f7 - () https://github.com/discourse/discourse/security/advisories/GHSA-22v7-6wgj-g9f7 - Vendor Advisory

09 Jul 2026, 22:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-07-09 22:17

Updated : 2026-07-14 20:43


NVD link : CVE-2026-45780

Mitre link : CVE-2026-45780

CVE.ORG link : CVE-2026-45780


JSON object : View

Products Affected

discourse

  • discourse
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor