CVE-2026-42190: RedwoodSDK has Same-site CSRF through lack of origin validation in its server actions

April 24, 2026 (updated May 13, 2026)

Server actions in rwsdk apply HTTP method enforcement but no origin validation. A request originating from a different origin that the browser treats as same-site can invoke a server action with the victim’s session cookie attached.

References

github.com/advisories/GHSA-m2m6-cff5-3w7c
github.com/redwoodjs/sdk/releases/tag/v1.2.3
github.com/redwoodjs/sdk/security/advisories/GHSA-m2m6-cff5-3w7c
nvd.nist.gov/vuln/detail/CVE-2026-42190

Code Behaviors & Features

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