Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, chat events for public category channels are published to MessageBus without permission scoping, so any MessageBus subscriber without chat enabled could receive chat message payloads in real time. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2026.1.0CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* | ||
>= 2026.1.0, < 2026.1.4CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* | ||
>= 2026.3.0, < 2026.3.1CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* | ||
>= 2026.4.0, < 2026.4.1CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* | ||
2026.5.0CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:2026.5.0:*:*:*:latest:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.