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VulnerabilityPublished

CVE-2026-39371: redwoodjs sdk · Cross-Site Request Forgery (CSRF)

Affects redwoodjs sdkSource CVE Database V5

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Not known to be exploited · CVSS 8.1 High : upgrade to 1.0.6 soon.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.0.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade redwoodjs sdk to 1.0.6.

Affected software

ProductAffectedFixed in
redwoodjssdkAffected
  • >=1.0.0-beta.50 <1.0.6
Fixed in
  • 1.0.6

AI-suggested

Upgrade RedwoodJS SDK to version 1.0.6 or later, where this vulnerability is fixed. No other mitigation is specified or required according to the available data. Patch status is confirmed by the vendor's versioning information.

Description

A Cross-Site Request Forgery (CSRF) vulnerability exists in RedwoodJS SDK versions from 1.0.0-beta.50 up to but not including 1.0.6. Server functions exported from "use server" files could be invoked via GET requests, bypassing intended HTTP method restrictions. In cookie-authenticated applications, this allowed cross-site GET navigations to trigger state-changing functions due to browsers sending SameSite=Lax cookies on top-level GET requests. This affects all server functions, including serverAction() handlers and bare exported functions. The vulnerability is fixed in version 1.

References

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