CVE-2024-3653

Aliases:GHSA-ch7q-gpff-h9hp
Advisory lineage Upstream: 0 Downstream: 5
Deferred
Published: 08 Jul 2024, 21:21
Last modified:07 Nov 2025, 18:44

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.3 MEDIUM
v3.1 (cve.org)
EPSS Score
4.43% LOW
4% probability -2.08%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Jul 2024, 21:21
Published
Vulnerability first disclosed
07 Nov 2025, 18:44
Last Modified
Vulnerability information updated

Description

A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request.

CVSS Metrics

  • v4.0•MEDIUM•Score: 6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Trends

Current EPSS score: 4.43%• Percentile: 89%

Techniques & Countermeasures

  • CWE-401•Missing Release of Memory after Effective Lifetime

    The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected Systems

  • debian•undertow

    < 2.3.18-1

  • io.undertow•undertow-core

    ≥ 2.3.0.Alpha1, < 2.3.15.Final | < 2.2.34.Final

References (16)