CVE-2025-58362 – hono

Package

Manager: npm
Name: hono
Vulnerable Version: >=4.8.0 <4.9.6

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00029 pctl0.06651

Details

Hono's flaw in URL path parsing could cause path confusion ### 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.

Metadata

Created: 2025-09-03T21:30:13Z
Modified: 2025-09-05T16:11:28Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/09/GHSA-9hp6-4448-45g2/GHSA-9hp6-4448-45g2.json
CWE IDs: ["CWE-706"]
Alternative ID: GHSA-9hp6-4448-45g2
Finding: F013
Auto approve: 1