Vulnerability Description
9Router before 0.4.72 contains a server-side request forgery (SSRF) vulnerability in the /v1/web/fetch endpoint. The endpoint accepts a user-controlled url parameter and passes it to a configured external scraping provider (Firecrawl, Jina Reader, Tavily, or Exa) to fetch content. The URL is only validated as syntactically valid via new URL() with no blocklist for private IP ranges, cloud metadata endpoints (e.g., 169.254.169.254), link-local addresses, or internal hostnames. An authenticated or locally-connected user can cause the server to fetch arbitrary internal URLs and have the response content returned, enabling read-access SSRF that can expose cloud metadata credentials, reach internal services, and bypass authentication on localhost endpoints.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/decolua/9router/security/advisories/GHSA-qj3v-64wj-q825
- https://www.vulncheck.com/advisories/9router-before-server-side-request-forgery-
- https://github.com/decolua/9router/security/advisories/GHSA-qj3v-64wj-q825
FAQ
What is CVE-2026-63313?
CVE-2026-63313 is a vulnerability with a CVSS score of 7.7 (HIGH). 9Router before 0.4.72 contains a server-side request forgery (SSRF) vulnerability in the /v1/web/fetch endpoint. The endpoint accepts a user-controlled url parameter and passes it to a configured exte...
How severe is CVE-2026-63313?
CVE-2026-63313 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63313?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.