RedwoodSDK: Same-site CSRF in in server actions

published 2026-04-24 6 mo ago modified 2026-10-26 14 d ago also EUVD-2026-28823 , GHSA-m2m6-cff5-3w7c

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

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.

Patch / fix

fixed in 2 links 1

npm rwsdk 1.2.3
redwoodjs redwoodsdk 1.2.3

github.com/redwoodjs/sdk/releases/tag/v1.2.3 release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-05-12)

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
GitHub	3.1	5.3	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	rwsdk	>=1.0.0-beta.50, <1.2.3	1.2.3

Affected products

redwoodjs sdk

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

github.com /redwoodjs/sdk/security/advisories/GHSA-m2m6-cff5-3w7c
web, vendor-advisory
github.com /redwoodjs/sdk/releases/tag/v1.2.3
web, product, release-notes
nvd.nist.gov /vuln/detail/CVE-2026-42190
advisory
github.com /redwoodjs/sdk
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary