CVE-2026-30891

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a user could access another user's private activity due to insufficient authorization checks in the user actions endpoint. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

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-ww5f-24g5-c33g	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, 20:11

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
First Time		Discourse Discourse discourse
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-ww5f-24g5-c33g -~~	() https://github.com/discourse/discourse/security/advisories/GHSA-ww5f-24g5-c33g - Vendor Advisory
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 usuario podía acceder a la actividad privada de otro usuario debido a comprobaciones de autorización insuficientes en el endpoint de acciones de usuario. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche.

20 Mar 2026, 03:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-20 03:15

Updated : 2026-03-24 20:11

NVD link : CVE-2026-30891

Mitre link : CVE-2026-30891

CVE.ORG link : CVE-2026-30891

JSON object : View

Products Affected

discourse

discourse

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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