CVE-2026-32113
EPSS 0.07%Discourse: Open redirect via `sso_destination_url` cookie in `enter`
發布日:2026/4/7修改日:2026/4/7
描述
Discourse is an open-source discussion platform. From versions 2026.1.0 to before 2026.1.3, and 2026.2.0 to before 2026.2.2, 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.
受影響套件(1)
- Bitnami/discourse>= 2026.1.0, < 2026.1.3, >= 2026.2.0, < 2026.2.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
參考連結(5)
- WEBhttps://github.com/discourse/discourse/commit/080408b93d00305b51d71f63f755f43fa601884d
- WEBhttps://github.com/discourse/discourse/security/advisories/GHSA-378j-ccw4-4fwh
- WEBhttps://meta.discourse.org/t/use-discourse-as-an-identity-provider-sso-discourseconnect/32974
- WEBhttps://meta.discourse.org/t/using-discourse-as-a-sso-provider/32974
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2026-32113