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CVE-2026-69151— Angular i18n: Cross-Site Scripting (XSS) via event-handler attributes

Quick assessment

Affected
angular angular
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.

Angular是Angular组织开源的一个开发平台。用于使用 Typescript / JavaScript 和其他语言构建移动和桌面 Web 应用程序。 Angular 20.3.27之前版本、21.2.19之前版本和22.0.1之前版本存在跨站脚本漏洞，该漏洞源于Angular编译器i18n管道允许i18n-onerror等事件处理程序属性，导致低信任翻译文件可用可执行JavaScript替换静态处理程序，可能导致跨站脚本攻击。

CVSS 7.6 · High EPSS 0.33% · P24

Affected Version Matrix 9

VendorProduct Version RangeStatus
@angular compiler >= 22.0.0-next.0, < 22.0.1 affected
>= 21.0.0-next.0, < 21.2.19 affected
< 20.3.27 affected
@angular core >= 22.0.0-next.0, < 22.0.1 affected
>= 21.0.0-next.0, < 21.2.19 affected
< 20.3.27 affected
angular angular >= 22.0.0-next.0, < 22.0.1 affected
>= 21.0.0-next.0, < 21.2.19 affected
< 20.3.27 affected
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I. Basic Information for CVE-2026-69151

Vulnerability Information
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Vulnerability Title
Angular i18n: Cross-Site Scripting (XSS) via event-handler attributes
Source: 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 20.3.27, 21.2.19, and 22.0.1, the Angular compiler i18n pipeline permits i18n-onerror and other i18n-on event-handler attributes, allowing a lower-trust translation file to replace a static handler with executable JavaScript. This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Angular 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Angular是Angular组织开源的一个开发平台。用于使用 Typescript / JavaScript 和其他语言构建移动和桌面 Web 应用程序。 Angular 20.3.27之前版本、21.2.19之前版本和22.0.1之前版本存在跨站脚本漏洞，该漏洞源于Angular编译器i18n管道允许i18n-onerror等事件处理程序属性，导致低信任翻译文件可用可执行JavaScript替换静态处理程序，可能导致跨站脚本攻击。
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
angular angular >= 22.0.0-next.0, < 22.0.1 -
@angular compiler >= 22.0.0-next.0, < 22.0.1 -
@angular core >= 22.0.0-next.0, < 22.0.1 -

II. Public POCs for CVE-2026-69151

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III. Intelligence Information for CVE-2026-69151

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Patches & Fixes for CVE-2026-69151 (3)

Vendor Advisories for CVE-2026-69151 (1)

Same Patch Batch · angular · 2026-08-03 · 3 CVEs total

CVE-2026-68945 8.8 HIGH Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse
CVE-2026-69149 8.6 HIGH Angular SSR: Missing Fallback Raw-Content Serialization Escaping leads to Cross-Site Scrip

IV. Related Vulnerabilities

Same product: angular
Same vendor: angular
Same weakness: CWE-79

V. Comments for CVE-2026-69151

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