CVE-2024-5971

HIGH
MEDIUM Priority: 0.22 BB Relevance: 76/100
Published: 2024-07-08 Modified: 2026-11-07 First seen: 2026-11-07 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 vulnerability was found in Undertow, where the chunked response hangs after the body was flushed. The response headers and body were sent but the client would continue waiting as Undertow does not send the expected 0\r\n termination of the chunked response. This results in uncontrolled resource consumption, leaving the server side to a denial of service attack. This happens only with Java 17 TLSv1.3 scenarios.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
— — 0 < 2.2.34.Final
— — 2.3.0.Alpha1 < 2.3.15.Final
— — 0 < 2.2.34.Final
— — 2.3.0.Alpha1 < 2.3.15.Final

References & Advisories (11)

https://access.redhat.com/errata/RHSA-2024:4392
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:4884
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:5143
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:5144
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:5145
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:5147
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:6508
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:6883
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2292211
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

76 / 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

2.92%
Raw Score 0.029210
Percentile 87.3%
Date 2026-11-13

EPSS Trend

2026-11-13
0.02921
2026-11-12
0.02921
2026-11-10
0.02921
2026-11-09
0.02921
2026-11-08
0.02921
2026-11-07
0.02921
2026-11-06
0.02921

Intelligence Sources

mitre ref →
nvd ref →