SB2026072465 - Resource exhaustion in hono
Published: July 24, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2025-59139)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in the bodyLimit middleware when handling requests with conflicting Content-Length and Transfer-Encoding headers. A remote attacker can send a specially crafted request with an oversized chunked body to cause a denial of service.
The practical impact depends on the runtime and deployment environment, as some standards-compliant runtimes and reverse proxies may reject such malformed requests.
Remediation
Install update from vendor's website.