Server-Side Stream Reset Flaw in Undertow by Red Hat
CVE-2025-9784

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Apache Camel For Spring Boot 4
Red Hat Build Of Apache Camel - Hawtio 4
Red Hat Data Grid 8
Red Hat Enterprise Linux 10
Vendor
CVE Published:
2 September 2025

What is CVE-2025-9784?

A vulnerability exists in Undertow that allows malformed client requests to induce server-side stream resets, externalizing server management. This exploitation can lead to a denial of service (DoS) scenario by overwhelming server resources with continuous stream aborts, thereby affecting overall service availability. This issue accentuates the risks posed by common implementation weaknesses present in server-client architectures.

References

https://access.redhat.com/security/cve/CVE-2025-9784
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2392306
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-9784 : Server-Side Stream Reset Flaw in Undertow by Red Hat