GitHub Advisoryadvisory · Maven
GHSA-33hj-rcmx-86mv Undertow Servlets Vulnerable to Remote DoS via OutOfMemoryError when Passed Large Parameter Names
HIGH
Official page ↗
- Aliases
- CVE-2024-4027
- Ecosystem
- Maven
- Packages
- io.undertow:undertow-core
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-770
- Reviewed
- 2026-02-01
Affected packages
• Maven io.undertow:undertow-core: < 2.2.39.Final → fixed in 2.2.39.Final
• Maven io.undertow:undertow-core: >= 2.4.0.Alpha1, < 2.4.0.Beta1 → fixed in 2.4.0.Beta1
• Maven io.undertow:undertow-core: >= 2.3.0.Alpha1, < 2.3.21.Final → fixed in 2.3.21.Final
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.
Related
Alias · CVE (1)
- CVE-2024-4027 A flaw was found in Undertow. vulnerability
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-4027 advisory
- https://github.com/undertow-io/undertow/pull/1860 web
- https://github.com/undertow-io/undertow/pull/1882 web
- https://github.com/undertow-io/undertow/pull/1894 web
- https://github.com/undertow-io/undertow/commit/6b7c18481ce65ae4012d92fe2b7f17a21ef4d70b web
- https://github.com/undertow-io/undertow/commit/8318dd36fdc2c9842baf10c5f1bfbb3bc23f75e7 web
- https://github.com/undertow-io/undertow/commit/cb854c779b9e2368c3c274ebd7217c8e75d505be web
- https://github.com/undertow-io/undertow/commit/fb14baa51b611a4a9f755f1d8b07d6e12eac68e3 web
- https://access.redhat.com/security/cve/CVE-2024-4027 web
- https://bugzilla.redhat.com/show_bug.cgi?id=2276410 web
- https://github.com/undertow-io/undertow package
- https://github.com/undertow-io/undertow/releases/tag/2.2.39.Final web
- https://github.com/undertow-io/undertow/releases/tag/2.3.21.Final web
- https://github.com/undertow-io/undertow/releases/tag/2.4.0.Beta1 web
- https://issues.redhat.com/browse/UNDERTOW-2377 web