CVE-2025-5115

In Eclipse Jetty, versions <=9.4.57, <=10.0.25, <=11.0.25, <=12.0.21, <=12.1.0.alpha2, an HTTP/2 client may trigger the server to send RST_STREAM frames, for example by sending frames that are malformed or that should not be sent in a particular stream state, therefore forcing the server to consume resources such as CPU and memory. For example, a client can open a stream and then send WINDOW_UPDATE frames with window size increment of 0, which is illegal. Per specification https://www.rfc-editor.org/rfc/rfc9113.html#name-window_update , the server should send a RST_STREAM frame. The client can now open another stream and send another bad WINDOW_UPDATE, therefore causing the server to consume more resources than necessary, as this case does not exceed the max number of concurrent streams, yet the client is able to create an enormous amount of streams in a short period of time. The attack can be performed with other conditions (for example, a DATA frame for a closed stream) that cause the server to send a RST_STREAM frame. Links: * https://github.com/jetty/jetty.project/security/advisories/GHSA-mmxm-8w33-wc4h

• CWE-400

• https://github.com/jetty/jetty.project/pull/13449Issue Tracking
• https://github.com/jetty/jetty.project/releases/tag/jetty-10.0.26Release Notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-11.0.26Release Notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-12.0.25Release Notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.0Release Notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-9.4.58.v20250814Release Notes
• https://github.com/jetty/jetty.project/security/advisories/GHSA-mmxm-8w33-wc4hThird Party Advisory
• http://www.openwall.com/lists/oss-security/2025/08/20/4Third Party Advisory
• http://www.openwall.com/lists/oss-security/2025/09/17/1Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2025/09/msg00014.htmlIssue Tracking, Mailing List
• https://www.kb.cert.org/vuls/id/767506Third Party Advisory

Published

Aug 20, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

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