PT-2026-82541 · Red Hat+2 · Red Hat Data Grid 8+12
CVE-2026-5680
·
Published
2026-08-27
·
Updated
2026-09-01
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Undertow (affected versions not specified)
Description
A flaw exists where a remote attacker can cause a Denial of Service (DoS) by sending specially crafted WebSocket messages with permessage-deflate negotiated. This leads to excessive memory consumption because the
largerBuffer() method within the PerMessageDeflateFunction uses exponential doubling.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
Allocation of Resources Without Limits
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Weakness Enumeration
Related Identifiers
Affected Products
Red Hat Data Grid 8
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Fuse 7
Red Hat Jboss Enterprise Application Platform 7
Red Hat Enterprise Application Platform 8
Red Hat Jboss Enterprise Application Platform Expansion Pack
Red Hat Process Automation 7
Red Hat Single Sign-On 7
Red Hat Build Of Apache Camel - Hawtio 4
Red Hat Build Of Apache Camel For Spring Boot 4
Undertow