CVE-2026-9358
Gravedad CVSS v4.0:
BAJA
Tipo:
CWE-404
Apagado o liberación incorrecto de recursos
Fecha de publicación:
24/05/2026
Última modificación:
15/06/2026
Descripción
*** Pendiente de traducción *** A vulnerability was determined in postcss-selector-parser up to 6.1.2/7.1.2. Affected is the function toString of the file src/selectors/container.js of the component AST Serialization. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 6.1.3 and 7.1.3 is able to address this issue. This patch is called 5bc698cef66f8abd12610dc623e5d67cbc0f869d. It is suggested to upgrade the affected component. The vendor explains, that according to his definition "DoS on server-side on user-generated CSS is low risk for us (since most users compile own CSS with PostCSS)." The commits were backported to 6.x branch, which was the most downloaded version.
Impacto
Puntuación base 4.0
2.10
Gravedad 4.0
BAJA
Puntuación base 3.x
4.30
Gravedad 3.x
MEDIA
Puntuación base 2.0
5.00
Gravedad 2.0
MEDIA
Referencias a soluciones, herramientas e información
- https://gist.github.com/bx33661/581e3a38134601c04e19b4dfc9b459b9
- https://github.com/postcss/postcss-selector-parser/commit/5bc698cef66f8abd12610dc623e5d67cbc0f869d
- https://github.com/postcss/postcss-selector-parser/releases/tag/7.1.3
- https://vuldb.com/cve/CVE-2026-9358
- https://vuldb.com/submit/813080
- https://vuldb.com/vuln/365321
- https://vuldb.com/vuln/365321/cti