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CVE-2026-12611

Quick assessment

Affected
Eclipse Foundation Eclipse Jetty
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse Jetty是美国Eclipse基金会开源的一个开源的、基于Java的Web服务器和Java Servlet容器。 Eclipse Jetty 12.1.0版本至12.1.10版本、12.0.0版本至12.0.37版本、11.00版本至11.0.31版本、10.0.0版本至10.0.31版本、9.4.36版本至9.4.63版本存在资源管理错误漏洞，该漏洞源于服务器在处理客户端发送的RST_STREAM帧和GOAWAY帧时存在竞争条件，可能导致HTTP/2阻塞写入无法解除，最终所有线程被阻塞，

CVSS 8.7 · High EPSS 0.25% · P16

Affected Version Matrix 5

VendorProduct Version RangeStatus
Eclipse Foundation Eclipse Jetty 12.1.0≤ 12.1.10 affected
12.0.0≤ 12.0.37 affected
11.00≤ 11.0.31 affected
10.0.0≤ 10.0.31 affected
9.4.36≤ 9.4.63 affected
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I. Basic Information for CVE-2026-12611

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A client may issue HTTP/2 requests to a Jetty server that result in blocking writes that are never unblocked, eventually causing all threads to be blocked and the whole server to become unresponsive. This is caused by a race condition in the server when handling RST_STREAM frames and GOAWAY frames sent by the client. The race condition "resets" the HTTP2Flusher.terminated, previously set to a non-null value, to the null value, allowing entries to be enqueued in the flusher that however will never be processed. These unprocessed entries are the ones that would unblock the write-blocked threads.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Jetty 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Jetty是美国Eclipse基金会开源的一个开源的、基于Java的Web服务器和Java Servlet容器。 Eclipse Jetty 12.1.0版本至12.1.10版本、12.0.0版本至12.0.37版本、11.00版本至11.0.31版本、10.0.0版本至10.0.31版本、9.4.36版本至9.4.63版本存在资源管理错误漏洞，该漏洞源于服务器在处理客户端发送的RST_STREAM帧和GOAWAY帧时存在竞争条件，可能导致HTTP/2阻塞写入无法解除，最终所有线程被阻塞，
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse Jetty 12.1.0 ~ 12.1.10 -

II. Public POCs for CVE-2026-12611

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III. Intelligence Information for CVE-2026-12611

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Vendor Advisories for CVE-2026-12611 (1)

Same Patch Batch · Eclipse Foundation · 2026-09-08 · 5 CVEs total

CVE-2026-86464 9.9 CRITICAL Eclipse IdM 配置错误漏洞
CVE-2026-84197 9.2 CRITICAL Eclipse Ditto 加密问题漏洞
CVE-2026-19203 8.3 HIGH Eclipse Jetty 输入验证错误漏洞
CVE-2026-86590 6.3 MEDIUM Eclipse Che Dashboard 服务端请求伪造漏洞

IV. Related Vulnerabilities

Same product: Eclipse Jetty
Same vendor: Eclipse Foundation
Same weakness: CWE-400

V. Comments for CVE-2026-12611

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