Astro: Arbitrary CSS injection in Astro View Transitions

影響: npm:astro >= 7.1.0, <= 7.3.2 → 7.3.3

Astro's server-side View Transition CSS generator did not keep string animation properties within their generated CSS declarations. In an application that passes attacker-controlled data into an animation property such as duration, a value containing CSS delimiters could terminate the declaration and rule, then add attacker-selected CSS to the server-rendered page. The injected content remains inside the generated

Read on GitHub Advisory Database

On 10/23/2026, 01:29 AM, GitHub Advisory Database published "Astro: Arbitrary CSS injection in Astro View Transitions" (type: Advisory). Severity is "Low" (low). Related technologies: JavaScript / Node.js. CVE: CVE-2026-114127.