CVE-2026-63313
highpriority · track · 0EPSS 0.004 · 36 %ileEUEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.7–8.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/decolua/9router/security/advisories/GHSA-qj3v-64wj-q825cnnvd
- https://www.vulncheck.com/advisories/9router-before-server-side-request-forgery-via-v1-web-fetchcnnvd
- https://github.com/decolua/9router/security/advisories/GHSA-qj3v-64wj-q825enisa_euvd
- https://www.vulncheck.com/advisories/9router-before-server-side-request-forgery-via-v1-web-fetchenisa_euvd
- https://github.com/decolua/9router/security/advisories/GHSA-qj3v-64wj-q825nvd
- https://www.vulncheck.com/advisories/9router-before-server-side-request-forgery-via-v1-web-fetchnvd
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