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CVE-2026-32113

MEDIUM

6.1

Description

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.

Details CVE

Score CVSS v3.16.1

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie3/31/2026

Derniere modification4/3/2026

Sourcenvd

Observations honeypot0

Produits affectes

discourse:discourse

Faiblesses (CWE)

CWE-601

References

https://github.com/discourse/discourse/commit/080408b93d00305b51d71f63f755f43fa601884d(security-advisories@github.com)

https://github.com/discourse/discourse/security/advisories/GHSA-378j-ccw4-4fwh(security-advisories@github.com)

https://meta.discourse.org/t/using-discourse-as-a-sso-provider/32974(security-advisories@github.com)

https://meta.discourse.org/t/use-discourse-as-an-identity-provider-sso-discourseconnect/32974(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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