CVEvulnerability
CVE-2026-44891
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-17
- Last modified
- 2026-07-23
- 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-400, CWE-770
Description
Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.stomp.StompSubframeDecoder fails to limit the total number of headers or their cumulative size per frame, and the maxLineLength parameter only restricts individual header lines. An attacker can send a large number of short headers that are accumulated in memory inside DefaultStompHeadersSubframe until the JVM throws an OutOfMemoryError, causing denial of service for servers exposing a STOMP endpoint based on StompSubframeDecoder. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Affected configurations
• netty netty (< 4.1.136)
• netty netty (>= 4.2.0 < 4.2.16)
Related
References
- https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b Patch
- https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 Patch
- https://github.com/netty/netty/pull/17063 Issue Tracking, Patch
- https://github.com/netty/netty/pull/17065 Issue Tracking, Patch
- https://github.com/netty/netty/releases/tag/netty-4.1.136.Final Release Notes
- https://github.com/netty/netty/releases/tag/netty-4.2.16.Final Release Notes
- https://github.com/netty/netty/security/advisories/GHSA-vhch-2wf3-m8rp Exploit, Vendor Advisory
- https://github.com/netty/netty/security/advisories/GHSA-vhch-2wf3-m8rp Exploit, Vendor Advisory