CVE-2026-54267 Angular Client Hydration DOM Clobbering & Response-Cache Poisoning

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, to optimize client-side bootstrap in Server-Side Rendered SSR environments, Angular supports Hydration via...

CVE-2026-54267

Summary: Angular’s SSR hydration uses a state element with a predictable id (ng-state). In versions prior to 22.0.1, 21.2.17, and 20.3.25, an attacker could DOM-clobber by injecting an element with that id before the legitimate [removed] tag is parsed, causing Angular to parse forged JSON from Tr...

GHSA-RGJC-H3X7-9MWG Angular Client Hydration DOM Clobbering & Response-Cache Poisoning

To optimize client-side bootstrap in Server-Side Rendered SSR environments, Angular supports Hydration via provideClientHydration. During SSR, Angular serializes the application's runtime state such as cached HttpClient responses and outputs it into the HTML stream as a tag with a predictable...