CVE-2025-58362

High

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Versions 4.8.0 through 4.9.5 contain a flaw in the getPath utility function which could allow path confusion and potential bypass of proxy-level ACLs (e.g. Nginx location blocks). 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 depending on the application and environment. 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, otherwise it may be moderate. This issue is fixed in version 4.9.6.

SeverityHigh
CVSS7.5
Exploit probability—
ProductHono
PublishedSep 5, 2025
First seenSep 5, 2025
Weakness typeCWE-706CWE-706

How to fix

Update
  • hono hono4.9.6 or later
  • hono4.9.6 or later

Affected products

ProductAffected versionsFixed in
hono hono4.8.0 ≤ v < 4.9.64.9.6
hononpm4.8.0 ≤ v < 4.9.64.9.6

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