CVE-2026-126361
Astro is a web framework for content-driven websites. Prior to 7.4.5, Astro rendered a string used as a dynamic element name as raw HTML aft
CVSS
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Sin CVSS
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 13 nov 2026 · Última mod.: 13 nov 2026 · CWE-79 · CWE-184
Sin historial EPSS suficiente todavía.
Astro is a web framework for content-driven websites. Prior to 7.4.5, Astro rendered a string used as a dynamic element name as raw HTML after applying an incomplete character filter. A / in the string could make an HTML parser treat the remainder as attributes, allowing untrusted element-name input to inject event-handler markup. The .astro dynamic-tag renderer, JSX renderer, and MDX renderer were affected, and exploitation required an application to use request-controlled or stored untrusted data as all or part of an element name. This issue is fixed in version 7.4.5.
- github.comhttps://github.com/withastro/astro/commit/e023abac912d7cb6af2b9fb5107ef5dabc667096
- github.comhttps://github.com/withastro/astro/pull/18520
- github.comhttps://github.com/withastro/astro/releases/tag/astro@7.4.5
- github.comhttps://github.com/withastro/astro/security/advisories/GHSA-mh32-jxcr-mh9f