{"id":"CVE-2026-39371","aliases":["GHSA-x8rx-789c-2pxq"],"url":"https://o3.security/vulnerability/CVE-2026-39371","summary":"RedwoodSDK has a CSRF vulnerability in server function dispatch via GET requests","details":"RedwoodSDK is a server-first React framework. From 1.0.0-beta.50 to 1.0.5, erver functions exported from \"use server\" files could be invoked via GET requests, bypassing their intended HTTP method. In cookie-authenticated applications, this allowed cross-site GET navigations to trigger state-changing functions, because browsers send SameSite=Lax cookies on top-level GET requests. This affected all server functions -- both serverAction() handlers and bare exported functions in \"use server\" files. This vulnerability is fixed in 1.0.6.","published":"2026-04-07T19:28:30.941Z","modified":"2026-07-27T03:56:24.432778243Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"rwsdk","fixedVersion":"1.0.6"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39371.json"},{"type":"ADVISORY","url":"https://github.com/redwoodjs/sdk/security/advisories/GHSA-x8rx-789c-2pxq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39371"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-27T03:56:24.432778243Z"}}