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CVE-2025-12543

Undertow-core: undertow http server fails to reject malformed host headers leading to potential cache poisoning and ssrf PUBLISHED

Description (CNA)

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat build of Apache Camel 4.14.4 for Spring Boot 3.5.11unaffected
Red Hat / Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7unaffected 0:1.4.18-21.SP19_redhat_00001.1.ep7.el7 before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7unaffected 0:2.0.41-8.SP9_redhat_00001.1.el7eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.4.24unaffected 2.2.39.Final-redhat-00001 before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7unaffected 0:2.2.39-1.Final_redhat_00001.1.el7eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7unaffected 0:7.4.24-4.GA_redhat_00002.1.el7eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8unaffected 0:2.2.39-1.Final_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8unaffected 0:7.4.24-4.GA_redhat_00002.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9unaffected 0:2.2.39-1.Final_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9unaffected 0:7.4.24-4.GA_redhat_00002.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0unaffected
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8unaffected 0:1.83.0-1.redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8unaffected 0:33.0.0-2.jre_redhat_00003.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8unaffected 0:4.0.6-1.redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8unaffected 0:1.0.0-3.redhat_00009.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8unaffected 0:2.0.2-1.Final_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8unaffected 0:2.3.23-1.SP3_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9unaffected 0:1.83.0-1.redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9unaffected 0:33.0.0-2.jre_redhat_00003.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9unaffected 0:4.0.6-1.redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9unaffected 0:1.0.0-3.redhat_00009.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9unaffected 0:2.0.2-1.Final_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9unaffected 0:2.3.23-1.SP3_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1.3unaffected 2.3.20.SP4-redhat-00001 before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:4.0.10-1.redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:1.82.0-1.redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:801.3.0-1.GA_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:1.0.1-3.redhat_00003.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:6.6.36-1.Final_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:4.0.2-1.Final_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:2.5.0-1.redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:2.3.20-2.SP4_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:8.1.3-4.GA_redhat_00006.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:5.0.12-1.Final_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:2.6.6-1.Final_redhat_00001.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8unaffected 0:8.1.1-4.GA_redhat_00007.1.el8eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:4.0.10-1.redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:1.82.0-1.redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:801.3.0-1.GA_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:1.0.1-3.redhat_00003.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:6.6.36-1.Final_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:4.0.2-1.Final_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:2.5.0-1.redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:2.3.20-2.SP4_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:8.1.3-4.GA_redhat_00006.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:5.0.12-1.Final_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:2.6.6-1.Final_redhat_00001.1.el9eap before *
Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9unaffected 0:8.1.1-4.GA_redhat_00007.1.el9eap before *
Red Hat / Red Hat Single Sign-On 7.6.13unaffected
Red Hat / Red Hat Single Sign-On 7.6 for RHEL 7unaffected 0:18.0.20-1.redhat_00001.1.el7sso before *
Red Hat / Red Hat Single Sign-On 7.6 for RHEL 8unaffected 0:18.0.20-1.redhat_00001.1.el8sso before *
Red Hat / Red Hat Single Sign-On 7.6 for RHEL 9unaffected 0:18.0.20-1.redhat_00001.1.el9sso before *
Red Hat / RHEL-8 based Middleware Containersunaffected 7.6-85 before *
Red Hat / Red Hat build of Apache Camel - HawtIO 4unaffected
Red Hat / Red Hat Data Grid 8affected
Red Hat / Red Hat Enterprise Linux 10unaffected
Red Hat / Red Hat Enterprise Linux 8unaffected
Red Hat / Red Hat Enterprise Linux 8unaffected
Red Hat / Red Hat Enterprise Linux 9unaffected
Red Hat / Red Hat Fuse 7affected
Red Hat / Red Hat JBoss Enterprise Application Platform 7affected
Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Packaffected
Red Hat / Red Hat Process Automation 7affected

CWE

CWE-20

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.