CVEvulnerability
CVE-2026-93558
7.5 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-18
- Last modified
- 2026-10-15
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-1035
Description
A flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTP/1.1 pipelining to send requests faster than the application can respond. This leads to an unbounded growth of a per-connection queue, consuming excessive memory. Eventually, this can cause the Java Virtual Machine (JVM) to exhaust its heap, resulting in a Denial of Service (DoS) for the affected server.
Related
Weakness · not in database (1)
References
- https://access.redhat.com/errata/RHSA-2026:69440 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:69470 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:70257 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:83612 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-93558 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2536932 bugzilla.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2536932 bugzilla.redhat.com