FKIE_CVE-2026-27606
Vulnerability from fkie_nvd - Published: 2026-02-25 03:16 - Updated: 2026-02-25 16:05
Severity ?
Summary
Rollup is a module bundler for JavaScript. Versions prior to 2.80.0, 3.30.0, and 4.59.0 of the Rollup module bundler (specifically v4.x and present in current source) is vulnerable to an Arbitrary File Write via Path Traversal. Insecure file name sanitization in the core engine allows an attacker to control output filenames (e.g., via CLI named inputs, manual chunk aliases, or malicious plugins) and use traversal sequences (`../`) to overwrite files anywhere on the host filesystem that the build process has permissions for. This can lead to persistent Remote Code Execution (RCE) by overwriting critical system or user configuration files. Versions 2.80.0, 3.30.0, and 4.59.0 contain a patch for the issue.
References
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"value": "Rollup is a module bundler for JavaScript. Versions prior to 2.80.0, 3.30.0, and 4.59.0 of the Rollup module bundler (specifically v4.x and present in current source) is vulnerable to an Arbitrary File Write via Path Traversal. Insecure file name sanitization in the core engine allows an attacker to control output filenames (e.g., via CLI named inputs, manual chunk aliases, or malicious plugins) and use traversal sequences (`../`) to overwrite files anywhere on the host filesystem that the build process has permissions for. This can lead to persistent Remote Code Execution (RCE) by overwriting critical system or user configuration files. Versions 2.80.0, 3.30.0, and 4.59.0 contain a patch for the issue."
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"value": "Rollup es un empaquetador de m\u00f3dulos para JavaScript. Las versiones anteriores a la 2.80.0, 3.30.0 y 4.59.0 del empaquetador de m\u00f3dulos Rollup (espec\u00edficamente v4.x y presente en el c\u00f3digo fuente actual) es vulnerable a una escritura de archivo arbitraria mediante salto de ruta. La sanitizaci\u00f3n insegura de nombres de archivo en el motor principal permite a un atacante controlar los nombres de archivo de salida (por ejemplo, mediante entradas con nombre de CLI, alias de fragmentos manuales o plugins maliciosos) y usar secuencias de salto (\u0027../\u0027) para sobrescribir archivos en cualquier lugar del sistema de archivos del host para el que el proceso de compilaci\u00f3n tenga permisos. Esto puede conducir a una ejecuci\u00f3n remota de c\u00f3digo (RCE) persistente al sobrescribir archivos de configuraci\u00f3n cr\u00edticos del sistema o del usuario. Las versiones 2.80.0, 3.30.0 y 4.59.0 contienen un parche para el problema."
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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