CVE-2026-15561

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.16.0-22.redhat_00057.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.3.14-11.SP11_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:1.5.26-2.Final_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:5.0.31-3.SP2_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:1.10.0-46.Final_redhat_00044.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:4.1.135-1.Final_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:4.1.135-1.Final_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.5.5-30.SP12_redhat_00020.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.5.5-24.SP12_redhat_00016.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.2.40-2.SP3_redhat_00001.1.el7eap < *unaffected
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:7.4.25-2.GA_redhat_00001.1.el7eap < *unaffected

Weaknesses

  • CWE-770: Allocation of Resources Without Limits or Throttling

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References