CVE-2024-3884

HIGH
MEDIUM Priority: 0.11 BB Relevance: 75/100
Published: 2025-12-03 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

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.

Weakness Classification (1)

References & Advisories (14)

https://access.redhat.com/errata/RHSA-2026:0383
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:0384
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:0386
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3889
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3891
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3892
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4915
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4916
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4917
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4924
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:6011
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:6012
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2275287
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

1.46%
Raw Score 0.014570
Percentile 73.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.01457
2026-11-13
0.01457
2026-11-12
0.01457
2026-11-10
0.01457
2026-11-09
0.01457
2026-11-08
0.01457
2026-11-07
0.01457
2026-11-06
0.01457
2026-11-05
0.01457
2026-11-04
0.01457

Intelligence Sources

mitre ref →
nvd ref →