Incorrect Conversion between Numeric Types in Netty - #VU148884
Published: September 10, 2026
Vulnerability identifier: #VU148884
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: N/A
CWE-ID: CWE-681
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incorrect conversion between numeric types in StompSubframeDecoder.java when processing STOMP frames with a content-length value exceeding the maximum integer value. A remote attacker can send a specially crafted STOMP frame to cause a denial of service.
Default configurations are affected.
Affected software
Netty
Remediation
Install security update from vendor's website.
Netty - addressed in versions 4.1.138, 4.2.18