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.
CVE-2024-3653
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 4.4%, top 11% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EPSS
- 76.8%
- KEV
- Not listed
Published
July 8, 2024
Last Modified
April 15, 2026
References (12)
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:4392
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:5143
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:5144
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:5145
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:5147
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:6437
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2024-3653
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2274437
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:4392
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2024-3653
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2274437
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240828-0002/
Vendor Advisories for CVE-2024-3653(5)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:5147Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.18 Security update
- RHSA-2024:5144Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.18 Security update
- RHSA-2024:5143Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.18 Security update
- RHSA-2024:5145Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.18 Security update
- RHSA-2024:4392Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.2 Security update
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | io.quarkus.http/quarkus-http-core:5.2.4.redhat-00001 | 2024-09-23 | redhat |
| redhat | undertow | 2024-08-08 | redhat |
| redhat | eap7-undertow-0:2.2.33-1.SP1_redhat_00001.1.el8eap | 2024-08-08 | redhat |
| redhat | eap7-undertow-0:2.2.33-1.SP1_redhat_00001.1.el9eap | 2024-08-08 | redhat |
| redhat | eap7-undertow-0:2.2.33-1.SP1_redhat_00001.1.el7eap | 2024-08-08 | redhat |
| debian:13 | undertow @ 2.3.18-1 | — | osv |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| io.undertow:undertow-core | 1.0.0.Alpha1 ... 2.2.9.Final (302 versions) | 2.2.34.Final | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 9× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-11 03:41 UTCOSV refresh
- 2026-07-09 19:09 UTCEPSS rescore
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- 2026-07-08 15:14 UTCEPSS rescore
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- 2026-07-04 06:30 UTCEPSS rescore
- 2026-07-01 15:05 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
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- 2026-06-29 14:05 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
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- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
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- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-22 11:02 UTCOSV refresh
- 2026-06-21 14:55 UTCEPSS rescore
- 2026-06-21 01:58 UTCEPSS rescore
- 2026-06-21 01:58 UTCEPSS rescore
- 2026-06-19 19:25 UTCEPSS rescore
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- 2026-06-18 17:52 UTCEPSS rescore
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- 2026-06-16 17:52 UTCEPSS rescore
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- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-04 15:09 UTCOSV refresh
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
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- 2026-05-29 13:43 UTCEPSS rescore
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- 2026-05-27 13:40 UTCEPSS rescore
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- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-23 00:09 UTCEG score recompute
- 2026-05-22 21:16 UTCEPSS rescore
- 2026-05-22 21:16 UTCEPSS rescore
- 2026-05-22 21:16 UTCEPSS rescore
- 2026-05-22 21:16 UTCEPSS rescore
- 2026-05-22 00:31 UTCEG score recompute
- 2026-05-22 00:31 UTCVendor advisory
- 2026-05-21 22:42 UTCEPSS rescore
- 2026-05-21 22:42 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 05:33 UTCOSV refresh
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
Related CVEs(same product + same vendor + same CWE)
Same product
4 showndebian:13:undertow
Same vendor
10 shownredhat
Frequently asked(5)
What is CVE-2024-3653?
When was CVE-2024-3653 disclosed?
Is CVE-2024-3653 actively exploited?
What is the CVSS score of CVE-2024-3653?
How do I remediate CVE-2024-3653?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-3653
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