CVE-2026-50159: Css Selector Incomplete Namespace Check
The CSS selector scope check uses `startsWith(namespace)` without verifying trailing delimiters (such as spaces or child combinators). Selectors with sibling combinators (e.g., `#namespace~*`) can bypass scope prepending, leading to CSS injection or style pollution.
TSgreprules fetch cve-2026-50159-css-selector-incomplete-namespace-check --engine opengrepDescription
The CSS selector scope check uses `startsWith(namespace)` without verifying trailing delimiters (such as spaces or child combinators). Selectors with sibling combinators (e.g., `#namespace~*`) can bypass scope prepending, leading to CSS injection or style pollution.
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