What’s Vulnerable › Vulnerabilities

CVE-2026-42190: RedwoodSDK: Same-site CSRF in in server actions

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-08 · updated 2026-10-26
• Weakness: CWE-352

Description

RedwoodSDK is a server-first React framework. From version 1.0.0-beta.50 to before version 1.2.3, 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. This issue has been patched in version 1.2.3.

Affected products

• redwoodjs sdk: from 1.0.1 before 1.2.3; 1.0.0-beta50, 1.0.0-beta51, 1.0.0-beta52, 1.0.0-beta53, 1.0.0-beta53_test20260205213024, 1.0.0-beta54 (+4) — fixed in 1.2.3

How to fix

Upgrade to a fixed version: redwoodjs sdk 1.2.3. Check the vendor advisory for mitigations.

References

• https://github.com/redwoodjs/sdk/releases/tag/v1.2.3
• https://github.com/redwoodjs/sdk/security/advisories/GHSA-m2m6-cff5-3w7c

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