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CVE-2026-68945— Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning

CVSS 8.8 · High EPSS 0.19% · P9

Possible ATT&CK Techniques 1AI

T1005 · Data from Local System

Affected Version Matrix 6

VendorProductVersion RangeStatus
@angularcommon< 20.3.27affected
>= 21.0.0-next.0, < 21.2.19affected
>= 22.0.0-next.0, < 22.0.2affected
angularangular< 20.3.27affected
>= 21.0.0-next.0, < 21.2.19affected
>= 22.0.0-next.0, < 22.0.2affected
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I. Basic Information for CVE-2026-68945

Vulnerability Information
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Vulnerability Title
Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning
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 22.0.2, HttpTransferCache comma-joins repeated request parameters, allowing semantically distinct HttpClient requests to use the same transfer-cache key and reuse a wrong backend response. This issue is fixed in versions 20.3.27, 21.2.19, and 22.0.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Angular 输入验证错误漏洞
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22.0.2之前版本存在输入验证错误漏洞，该漏洞源于HttpTransferCache对重复请求参数进行逗号连接，导致语义不同的HttpClient请求使用相同的传输缓存键并重用错误的后端响应。
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

VendorProductAffected VersionsCPESubscribe
angularangular < 20.3.27 -
@angularcommon < 20.3.27 -

II. Public POCs for CVE-2026-68945

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III. Intelligence Information for CVE-2026-68945

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Patches & Fixes for CVE-2026-68945 (5)

Vendor Advisories for CVE-2026-68945 (1)

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

CVE-2026-691498.6 HIGHAngular SSR: Missing Fallback Raw-Content Serialization Escaping leads to Cross-Site Scrip
CVE-2026-691517.6 HIGHAngular i18n: Cross-Site Scripting (XSS) via event-handler attributes

IV. Related Vulnerabilities

Same product: angular
Same vendor: angular
Same weakness: CWE-345

V. Comments for CVE-2026-68945

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