CVE-2026-41591
CVE-2026-41591 · Marko: XSS via case-insensitive script/style closing tag bypass in runtime HTML escaping
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Marko is a declarative, HTML-based language for building web apps. Prior to marko version 5.38.36 and prior to @marko/runtime-tags 6.0.164, when dynamic text is interpolated into a <script> or <style> tag the Marko runtime failed to prevent tag breakout when the closing tag used non-lowercase casing. An attacker able to place input inside a <script> or <style> block could break out of the tag with </SCRIPT>, </Style>, etc. and inject arbitrary HTML/JavaScript, resulting in cross-site scripting. This issue has been patched in marko version 5.38.36 and @marko/runtime-tags 6.0.164.
CVSS 6.4 · Media · EPSS 0,2% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
marko
- Versiones
- marko < 5.38.36: Afectada
- @marko/runtime-tags < 6.0.164: Afectada
Sin corrección publicada
marko npm
- Intervalos de versiones afectados
- SEMVER: < 5.38.36
Actualiza a 5.38.36
@marko/runtime-tags npm
- Intervalos de versiones afectados
- SEMVER: < 6.0.164
Actualiza a 6.0.164