CVE-2024-43787

Published: Aug 22, 2024Modified: Sep 17, 2025

5.0

Vector

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

Exploitability: 1.6 / Impact: 3.4

Source: security-advisories@github.com (Secondary)

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Hono CSRF middleware can be bypassed using crafted Content-Type header. MIME types are case insensitive, but isRequestedByFormElementRe only matches lower-case. As a result, attacker can bypass csrf middleware using upper-case form-like MIME type. This vulnerability is fixed in 4.5.8.

Affected (1)

Products: Hono: Hono

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Hono Hono	Before 4.5.8

Related CWEs

Cross-Site Request Forgery (CSRF)

The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

References (3)

https://github.com/honojs/hono/blob/b0af71fbcc6dbe44140ea76f16d68dfdb32a99a0/src/middleware/csrf/index.ts#L16-L17

Source: security-advisories@github.com

Product

https://github.com/honojs/hono/commit/41ce840379516410dee60c783142e05bb5a22449

Source: security-advisories@github.com

Patch

https://github.com/honojs/hono/security/advisories/GHSA-rpfr-3m35-5vx5

Source: security-advisories@github.com

ExploitVendor Advisory

Timeline

No history available yet.