Vulnerability record · CVE-2025-5115 · published 20 August 2025
CVE-2025-5115: Eclipse jetty uncontrolled resource consumption vulnerability
Eclipse · Jetty
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
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
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://github.com/jetty/jetty.project/pull/13449 | Issue Tracking |
| https://github.com/jetty/jetty.project/releases/tag/jetty-10.0.26 | Release Notes |
| https://github.com/jetty/jetty.project/releases/tag/jetty-11.0.26 | Release Notes |
| https://github.com/jetty/jetty.project/releases/tag/jetty-12.0.25 | Release Notes |
| https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.0 | Release Notes |
| https://github.com/jetty/jetty.project/releases/tag/jetty-9.4.58.v20250814 | Release Notes |
| https://github.com/jetty/jetty.project/security/advisories/GHSA-mmxm-8w33-wc4h | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2025/08/20/4 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2025/09/17/1 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2025/09/msg00014.html | Issue TrackingMailing List |
| https://www.kb.cert.org/vuls/id/767506 | Third Party Advisory |
Track CVE-2025-5115 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2025-5115), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.
