Cross-Origin Request Vulnerability in Waku Minimal React Framework
CVE-2026-49455

6.5MEDIUM

Key Information:

Vendor

Wakujs

Status
Waku
Vendor
CVE Published:
3 September 2026

What is CVE-2026-49455?

The Waku Minimal React Framework contains a cross-origin request vulnerability due to the improper handling of the Origin header within its server action dispatcher. Versions prior to 1.0.0-beta.1 lack validation for the request’s Origin or Sec-Fetch-Site header, allowing malicious actors to exploit this flaw. An attacker can craft a malicious request that forces a victim's browser to make authenticated POST requests to certain server action endpoints, potentially compromising user data and session integrity. This vulnerability has been addressed in version 1.0.0-beta.1.

Affected Version(s)

waku < 1.0.0-beta.1

References

https://github.com/wakujs/waku/security/advisories/GHSA-7...
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https://github.com/wakujs/waku/releases/tag/v1.0.0-beta.1
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CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.