CVE-2024-4027
Undertow Servlets Vulnerable to Remote DoS via OutOfMemoryError when Passed Large Parameter Names
7.5
HIGH
CVSS 3.1
EPSS 0.38%
Description
A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames() can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service (DoS) attack.
How to fix CVE-2024-4027
To remediate CVE-2024-4027, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 2.2.39.Final or later
Is CVE-2024-4027 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 2.2.39.Final
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |