CVE-2026-42190

RedwoodSDK: Same-site CSRF in in server actions

MEDIUM
5.3
CVSS Score
Published: May 8, 2026 at 07:35 PM UTC
Updated: October 26, 2026 at 12:10 AM UTC
1 product affected across 1 vendorRedwoodsdk

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 1.2.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/redwoodjs/sdk/security/advisories/GHSA-m2m6-cff5-3w7c
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/redwoodjs/sdk/releases/tag/v1.2.3

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-352

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