MadeYouReset HTTP/2 vulnerability

Description

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

Timeline

Scores

EPSS (exploitation in 30 days)

3.6% · top 11% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.

Weakness

• CWE-400 Uncontrolled Resource Consumption (opens in a new tab)All about CWE-400 and its CVEs

Affected products

• Eclipse Jetty · Eclipse Jetty

  • affected >=9.3.0 – ≤ <=9.4.57
  • affected >=10.0.0 – ≤ <=10.0.25
  • affected >=11.0.0 – ≤ <=11.0.25
  • affected >=12.0.0 – ≤ <=12.0.21
  • affected >=12.1.0.alpha0 – ≤ <=12.1.0.alpha2

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Mavenorg.eclipse.jetty.http2:http2-commonGHSA-mmxm-8w33-wc4h (opens in a new tab)
• Mavenorg.eclipse.jetty.http2:jetty-http2-commonGHSA-mmxm-8w33-wc4h (opens in a new tab)

References (11)

• https://github.com/jetty/jetty.project/security/advisories/GHSA-mmxm-8w33-wc4h (opens in a new tab)issue-tracking
• https://github.com/jetty/jetty.project/pull/13449 (opens in a new tab)patch
• https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.0 (opens in a new tab)release-notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-12.0.25 (opens in a new tab)release-notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-11.0.26 (opens in a new tab)release-notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-10.0.26 (opens in a new tab)release-notes
• https://github.com/jetty/jetty.project/releases/tag/jetty-9.4.58.v20250814 (opens in a new tab)release-notes
• https://lists.debian.org/debian-lts-announce/2025/09/msg00014.html (opens in a new tab)
• https://www.kb.cert.org/vuls/id/767506 (opens in a new tab)
• http://www.openwall.com/lists/oss-security/2025/09/17/1 (opens in a new tab)
• http://www.openwall.com/lists/oss-security/2025/08/20/4 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-mmxm-8w33-wc4h (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-5115](https://trackcve.app/badge/CVE-2025-5115.svg)](https://trackcve.app/cve/CVE-2025-5115)

Record last updated 4 Nov 2025, 21:11 UTC.