CSRF in Hono
CVE-2024-43787
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.002 (14.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L.
Affected products
- Hono
- Honojs Hono — versions < 4.5.8
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-43787?
- CVE-2024-43787 is a medium-severity vulnerability in Hono, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.0/10. Published 2024-08-22.
- How severe is CVE-2024-43787?
- Medium severity. CVSS v3 base score is 5.0 out of 10.