Overview
The Common Vulnerabilities and Exposures system has recently identified a flaw in the Hono Web application framework. This particular vulnerability, dubbed CVE-2025-58362, impacts versions 4.8.0 through 4.9.5 of the framework and can potentially allow bypass of proxy-level Access Control Lists (ACLs), such as Nginx location blocks, thus potentially compromising the system or leading to data leakage.
Vulnerability Summary
CVE ID: CVE-2025-58362
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
Share secrets securely
Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.
Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.
- • Encrypted identity
- • Private Spaces for organizations and teams
- • End-to-end encrypted chat, calls, files, and notes
- • Sensitive AI work and protected collaboration
- • Built for information that cannot leak
Our mission is to secure human work alongside AI.
Product | Affected Versions
Hono Web Application Framework | 4.8.0 to 4.9.5
How the Exploit Works
The vulnerability resides in the getPath utility function of Hono’s Web application framework. It functions on the basis of fixed character offsets when parsing request URLs. Under certain conditions involving malformed absolute-form Request-URIs, incorrect path extraction might occur. This could potentially allow an attacker to bypass proxy ACLs that protect sensitive endpoints such as /admin, leading to unauthorized access to these endpoints.
Conceptual Example Code
The following example demonstrates a hypothetical request that could potentially exploit this vulnerability:
GET http://target.example.com/%2F..%2Fadmin HTTP/1.1
Host: target.example.com
In this example, a malformed Request-URI is used to potentially bypass the ACL protecting the /admin endpoint, thereby granting unauthorized access to it.
