CVE-2026-32113

Published: Mar 31, 2026 Last Modified: Mar 31, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,1
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: active
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, the enter action in StaticController reads the sso_destination_url cookie and redirects to it with allow_other_host: true without validating the destination URL. While this cookie is normally set during legitimate DiscourseConnect Provider flows with cryptographically validated SSO payloads, cookies are client-controlled and can be set by attackers. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

601

URL Redirection to Untrusted Site ('Open Redirect')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Other
Potential Impacts:
Bypass Protection Mechanism Gain Privileges Or Assume Identity Other
Applicable Platforms
Technologies: Web Based, Web Server
Likelihood of Exploit: Low
View CWE Details
https://github.com/discourse/discourse/commit/080408b93d003…
https://github.com/discourse/discourse/commit/080408b93d00305b51d71f63f755f43fa…
https://github.com/discourse/discourse/security/advisories/…
https://github.com/discourse/discourse/security/advisories/GHSA-378j-ccw4-4fwh
https://meta.discourse.org/t/using-discourse-as-a-sso-provi…
https://meta.discourse.org/t/using-discourse-as-a-sso-provider/32974