Resource exhaustion in Honojs Hono
CVE-2025-59139
Hono is a Web application framework that provides support for any JavaScript runtime. In versions prior to 4.9.7, a flaw in the `bodyLimit` middleware could allow bypassing the configured request body size limit when conflicting HTTP heade…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.001 (16.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Honojs Hono — versions < 4.9.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/honojs/hono/security/advisories/GHSA-92vj-g62v-jqhh (x_refsource_CONFIRM)
- https://github.com/honojs/hono/commit/605c70560b52f13af10379f79b76717042fafe8d (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-59139?
- CVE-2025-59139 is a medium-severity vulnerability in Honojs Hono, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2025-09-12.
- How severe is CVE-2025-59139?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-59139 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.