Description
A flaw was found in EAP's undertow http/1.1 chunked-transfer decoder. missing limits on size and count would allow an attacker to use an unauthenticated connection to drive the JVM to an OutOfMemory error, stopping all deployments on the listener, and achieving Denial of Service.
Published: 2026-08-11
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 11 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat jboss Enterprise Application Platform Els
CPEs cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Vendors & Products Redhat jboss Enterprise Application Platform Els
References

Tue, 11 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 11 Aug 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat jboss Enterprise Application Platform Expansion Pack
Vendors & Products Redhat jboss Enterprise Application Platform Expansion Pack

Tue, 11 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Tue, 11 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in EAP's undertow http/1.1 chunked-transfer decoder. missing limits on size and count would allow an attacker to use an unauthenticated connection to drive the JVM to an OutOfMemory error, stopping all deployments on the listener, and achieving Denial of Service.
Title Undertow-core: oom via missing limits in chunked trailer in eap's undertow
First Time appeared Redhat
Redhat jboss Enterprise Application Platform
Redhat jbosseapxp
Weaknesses CWE-770
CPEs cpe:/a:redhat:jboss_enterprise_application_platform:7
cpe:/a:redhat:jboss_enterprise_application_platform:8
cpe:/a:redhat:jbosseapxp
Vendors & Products Redhat
Redhat jboss Enterprise Application Platform
Redhat jbosseapxp
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Redhat Jboss Enterprise Application Platform Jboss Enterprise Application Platform Els Jboss Enterprise Application Platform Expansion Pack Jbosseapxp
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-11T20:26:38.587Z

Reserved: 2026-07-13T05:08:26.350Z

Link: CVE-2026-15561

cve-icon Vulnrichment

Updated: 2026-08-11T16:09:47.787Z

cve-icon NVD

Status : Received

Published: 2026-08-11T09:17:12.963

Modified: 2026-08-11T21:17:27.233

Link: CVE-2026-15561

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-11T05:52:49Z

Links: CVE-2026-15561 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-11T13:45:04Z

Weaknesses