CVE-2026-27934

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a lack of visibility checks with a user action API endpoint that results in disclosure of the title and post excerpt to unauthorized users, leading to information disclosure. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

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-824f-66wh-xx3g	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

25 Mar 2026, 21:04

Type	Values Removed	Values Added
References	~~() https://github.com/discourse/discourse/security/advisories/GHSA-824f-66wh-xx3g -~~	() https://github.com/discourse/discourse/security/advisories/GHSA-824f-66wh-xx3g - Vendor Advisory
First Time		Discourse Discourse discourse
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:a:discourse:discourse:2026.3.0::::latest::: cpe:2.3:a:discourse:discourse::::::::
Summary		(es) Discourse es una plataforma de discusión de código abierto. Las versiones anteriores a 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 carecen de comprobaciones de visibilidad con un endpoint de API de acción de usuario que resulta en la revelación del título y el extracto de la publicación a usuarios no autorizados, lo que lleva a la revelación de información. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche. No se conocen soluciones alternativas disponibles.

19 Mar 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-19 22:16

Updated : 2026-03-25 21:04

NVD link : CVE-2026-27934

Mitre link : CVE-2026-27934

CVE.ORG link : CVE-2026-27934

JSON object : View

Products Affected

discourse

discourse

CWE

CWE-201

Insertion of Sensitive Information Into Sent Data

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