SB2026072465 - Resource exhaustion in hono



SB2026072465 - Resource exhaustion in hono

Published: July 24, 2026

Security Bulletin ID SB2026072465
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 100%
  • 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.