CVEvulnerability
CVE-2026-93488
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-770
Description
A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaults to Integer.MAX_VALUE and the handler provides no API to change it. A remote peer can open a SPDY connection and send a large number of SYN_STREAM frames with FLAG_FIN=0, causing unbounded heap and direct memory allocation that can lead to JVM OutOfMemoryError and a denial of service.
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
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-2026-93488 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2536887 bugzilla.redhat.com
- https://github.com/netty/netty/releases/tag/netty-4.1.138.Final github.com
- https://github.com/netty/netty/releases/tag/netty-4.2.18.Final github.com