CVE-2026-30889

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a moderator could exploit insufficient authorization checks to access metadata of posts they should not have permission to view. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/discourse/discourse/security/advisories/GHSA-5qm9-r98f-g4mq	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:discourse:discourse::::::::
	cpe:2.3:a:discourse:discourse::::::::
	cpe:2.3:a:discourse:discourse:2026.3.0::::latest:::

History

24 Mar 2026, 20:00

Type	Values Removed	Values Added
Summary		(es) Discourse es una plataforma de discusión de código abierto. Antes de las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2, un moderador podía exploit comprobaciones de autorización insuficientes para acceder a metadatos de publicaciones que no debería tener permiso para ver. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche.
First Time		Discourse Discourse discourse
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.9
CPE		cpe:2.3:a:discourse:discourse:2026.3.0::::latest::: cpe:2.3:a:discourse:discourse::::::::
References	~~() https://github.com/discourse/discourse/security/advisories/GHSA-5qm9-r98f-g4mq -~~	() https://github.com/discourse/discourse/security/advisories/GHSA-5qm9-r98f-g4mq - Vendor Advisory

20 Mar 2026, 03:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-20 03:15

Updated : 2026-03-24 20:00

NVD link : CVE-2026-30889

Mitre link : CVE-2026-30889

CVE.ORG link : CVE-2026-30889

JSON object : View

Products Affected

discourse

discourse

CWE

CWE-862

Missing Authorization

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