Vulnerability-Lookup

GHSA-FHMG-Q5FC-2M8V

Vulnerability from github – Published: 2026-08-11 09:32 – Updated: 2026-08-11 21:32

Details

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.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-15561"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-11T09:17:12Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in EAP\u0027s 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.",
  "id": "GHSA-fhmg-q5fc-2m8v",
  "modified": "2026-08-11T21:32:34Z",
  "published": "2026-08-11T09:32:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15561"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:53644"
    },
    {
      "type": "WEB",
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      "type": "WEB",
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    }
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  "schema_version": "1.4.0",
  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-15561 (GCVE-0-2026-15561)

Vulnerability from cvelistv5 – Published: 2026-08-11 08:49 – Updated: 2026-08-11 20:26

Title

Undertow-core: oom via missing limits in chunked trailer in eap's undertow

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

redhat

References

3 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:53644	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-15561	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2483133	issue-trackingx_refsource_REDHAT

Impacted products

14 products

Vendor	Product	Version
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:2.16.0-22.redhat_00057.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:2.3.14-11.SP11_redhat_00001.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:1.5.26-2.Final_redhat_00001.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:2.18.8-1.redhat_00003.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:5.0.31-3.SP2_redhat_00001.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:1.10.0-46.Final_redhat_00044.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:4.1.135-1.Final_redhat_00001.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:2.5.5-30.SP12_redhat_00020.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:2.5.5-24.SP12_redhat_00016.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:2.2.40-2.SP3_redhat_00001.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7	Unaffected: 0:7.4.25-2.GA_redhat_00001.1.el7eap , < * (rpm) cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Red Hat	Red Hat JBoss Enterprise Application Platform 7	cpe:/a:redhat:jboss_enterprise_application_platform:7
Red Hat	Red Hat JBoss Enterprise Application Platform 8	cpe:/a:redhat:jboss_enterprise_application_platform:8
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	cpe:/a:redhat:jbosseapxp

Date Public

2026-08-11 05:52

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  "containers": {
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

GHSA-FHMG-Q5FC-2M8V

CVE-2026-15561 (GCVE-0-2026-15561)

Tags

Sightings

Nomenclature