Resource management error in Undertow - CVE-2024-4109
Published: December 11, 2024 / Updated: November 24, 2025
Vulnerability identifier: #VU101669
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-4109
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect handling of HTTP/2 requests when reusing connections, which results in parts of data from previous connection to be included into new responses. A remote attacker can send an HTTP/2 request to the server and gain access to potentially sensitive information.
Affected software
Undertow
openEuler
undertow
undertow-javadoc
openEuler
undertow
undertow-javadoc
How to mitigate CVE-2024-4109
Install update from vendor's website.
Undertow - addressed in versions 2.2.38, 2.3.19
undertow - update to 1.4.0-8
undertow-javadoc - update to 1.4.0-8
undertow - update to 1.4.0-8
undertow-javadoc - update to 1.4.0-8