Description
A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer() method using exponential doubling, resulting in a Denial of Service (DoS) for the affected application.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1.8.GA | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | — |
References
Timeline
- Published
- Aug 27, 2026
- Last modified
- Nov 4, 2026
- NVD status
- Awaiting Analysis