Resource exhaustion in Netty - CVE-2026-73507
Published: July 24, 2026 / Updated: August 14, 2026
Vulnerability identifier: #VU139252
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-73507
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in XmlFrameDecoder. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
Netty
How to mitigate CVE-2026-73507
Install updates from vendor's website.
Netty - addressed in versions 4.1.136, 4.2.16