Missing Release of Resource after Effective Lifetime in Netty - CVE-2026-73508
Published: July 24, 2026 / Updated: August 14, 2026
Vulnerability identifier: #VU139253
CSH Severity: Medium
CVSS v4: 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]
CVE-ID: CVE-2026-73508
CWE-ID: CWE-772
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 missing release of resource after rffective lifetime in DNS Record Decoder. A remote attacker can cause a denial of service condition on the target system.
Affected software
Netty
How to mitigate CVE-2026-73508
Install updates from vendor's website.
Netty - addressed in versions 4.1.136, 4.2.16