CVE-2026-32113Medium· 6.1▾ SunlitDiscourse 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 33.6 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Jul 24.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
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.
discourse >= 2026.1.0, < 2026.1.3discourse >= 2026.2.0, < 2026.2.2discourse = 2026.3.0Upgrade past the affected range:
discourse 2026.2.2Connected by shared product, vendor, weakness, or advisory.
CVE-2026-59830Medium· 5.4Discourse is an open-source discussion platform
CVE-2026-27481Medium· 5.3Discourse is an open-source discussion platform
CVE-2026-32618Medium· 4.3Discourse is an open-source discussion platform
CVE-2026-32615Medium· 5.4Discourse is an open-source discussion platform
CVE-2026-32607Medium· 5.4Discourse is an open-source discussion platform
CVE-2026-32273Medium· 5.4Discourse is an open-source discussion platform