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CVE-2026-101895— Angular SSR: Denial of Service (DoS) via Infinite Loop on Malformed DOCTYPE

一分钟漏洞结论

影响对象
angular angular
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.31, 21.2.23, and 22.1.6, the @angular/platform-server DOM emulation parser can enter an infinite synchronous loop

CVSS 8.7 · High

影响版本矩阵 8

厂商产品 版本范围状态
@angular/ platform-server <= 19.2.25 affected
>= 20.0.0, < 20.3.31 affected
>= 21.0.0, < 21.2.23 affected
>= 22.0.0, < 22.1.6 affected
angular angular <= 19.2.25 affected
>= 20.0.0, < 20.3.31 affected
>= 21.0.0, < 21.2.23 affected
>= 22.0.0, < 22.1.6 affected
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一、 漏洞 CVE-2026-101895 基础信息

漏洞信息

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Vulnerability Title
Angular SSR: Denial of Service (DoS) via Infinite Loop on Malformed DOCTYPE
来源: CVE Program / CVE List V5
Vulnerability Description
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.31, 21.2.23, and 22.1.6, the @angular/platform-server DOM emulation parser can enter an infinite synchronous loop when Angular server-side rendering processes attacker-controlled HTML containing an incomplete DOCTYPE that ends with whitespace at end of input. In Domino lib/HTMLParser.js, after_doctype_name_state emits doctype and EOF tokens without advancing nextchar or leaving the fixed-lookahead state, so the scanner repeatedly handles the same EOF marker. A remote unauthenticated attacker can use this condition through server-side HTML parsing paths such as innerHTML binding to consume a Node.js SSR worker at full CPU, starve the event loop, and stop concurrent and subsequent requests. This issue is fixed in versions 20.3.31, 21.2.23, and 22.1.6.
来源: 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
来源: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
angular angular <= 19.2.25 -
@angular/ platform-server <= 19.2.25 -

二、漏洞 CVE-2026-101895 的公开POC

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三、漏洞 CVE-2026-101895 的情报信息

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CVE-2026-101895 补丁与修复 (3)

CVE-2026-101895 其他参考 (4)

同批安全公告 · angular · 2026-10-14 · 共 3 条

CVE-2026-101896 8.2 HIGH Angular: Denial of Service via Numeric URL Matrix Parameters in Server-Side Rendering (SSR
CVE-2026-101897 5.1 MEDIUM Angular DevTools (Local DoS)

IV. Related Vulnerabilities

Same product: angular
Same vendor: angular
Same weakness: CWE-400

V. Comments for CVE-2026-101895

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