GitHub Advisoryadvisory · npm
GHSA-9hp6-4448-45g2 Hono's flaw in URL path parsing could cause path confusion
HIGH
Official page ↗
- Aliases
- CVE-2025-58362
- Ecosystem
- npm
- Packages
- hono
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-706
- Reviewed
- 2025-09-03
Affected packages
• npm hono: >= 4.8.0, < 4.9.6 → fixed in 4.9.6
Description
Summary
A flaw in the `getPath` utility function could allow path confusion and potential bypass of proxy-level ACLs (e.g. Nginx location blocks).
Details
The original implementation relied on fixed character offsets when parsing request URLs. Under certain malformed absolute-form Request-URIs, this could lead to incorrect path extraction.
Most standards-compliant runtimes and reverse proxies reject such malformed requests with a 400 Bad Request, so the impact depends on the application and environment.
Impact
If proxy ACLs are used to protect sensitive endpoints such as `/admin`, this flaw could have allowed unauthorized access. The confidentiality impact depends on what data is exposed: if sensitive administrative data is exposed, the impact may be High (CVSS 7.5); otherwise it may be Medium (CVSS 5.3).
Resolution
The implementation has been updated to correctly locate the first slash after "://", preventing such path confusion.
Related
Alias · CVE (1)
- CVE-2025-58362 Hono is a Web application framework that provides support for any JavaScript runtime. vulnerability
Weakness · CWE (1)
- CWE-706 Use of Incorrectly-Resolved Name or Reference weakness
References
- https://github.com/honojs/hono/security/advisories/GHSA-9hp6-4448-45g2 web
- https://nvd.nist.gov/vuln/detail/CVE-2025-58362 advisory
- https://github.com/honojs/hono/commit/1d79aedc3f82d8c9969b115fe61bc4bd705ec8de web
- https://github.com/honojs/hono package
- https://github.com/honojs/hono/releases/tag/v4.9.6 web