CVE-2024-3884
A flaw was found in Undertow that can cause remote denial of service attacks.
Published Dec 3, 2025 · updated Oct 14, 2026
A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue. This flaw allows unauthorized users to cause a remote denial of service (DoS) attack.
Code
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Timeline
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Dec 3, 2025 · NIST NVD
Detected
A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue. This flaw allows unauthorized users to cause a remote denial of service (DoS) attack.
Oct 14, 2026 · NIST NVD
Updated
A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue. This flaw allows unauthorized users to cause a remote denial of service (DoS) attack.
Sources
- CVE.orgVulnerability recordCVE-2024-3884
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2024-3884
30-day exploitation probability 1.4%
first.org - NIST NVDVulnerability recordCVE-2024-3884
A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issu
nvd.nist.gov