CVE-2026-49456
- Source
- https://cve.org/CVERecord?id=CVE-2026-49456
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49456.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-49456
- Aliases
- Published
- 2026-09-03T18:15:54.213Z
- Modified
- 2026-09-04T03:47:36.199338615Z
- Severity
-
- 3.1 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- Waku: Open Redirect via `unstable_redirect` Helper
- Details
-
Waku is the minimal React framework. Prior to version 1.0.0-beta.1, the unstable_redirect() helper exported from waku/router/server (packages/waku/src/router/define-router.tsx:156–161) accepts an arbitrary string and reflects it unchanged into the HTTP Location response header with no URL validation, scheme restriction, or path-only enforcement. Any application that passes user-controlled input to this helper — the natural pattern documented in the JSDoc and official fixtures — is vulnerable to open redirect attacks. An attacker who convinces a victim to click a crafted link can silently redirect the browser to an arbitrary external domain, enabling phishing, credential harvesting, and OAuth token theft. Additionally, scheme-relative URLs (//evil.example/) bypass naive https?://-only allow-list filters that developers might add as ad-hoc mitigations. This issue has been patched in version 1.0.0-beta.1.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49456.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-601" ] }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49456.json
- https://github.com/wakujs/waku/pull/2090
- https://github.com/wakujs/waku/releases/tag/v1.0.0-beta.1
- https://github.com/wakujs/waku/security/advisories/GHSA-43fc-v873-qw85
- https://nvd.nist.gov/vuln/detail/CVE-2026-49456