CVE-2026-27606
CRITICAL SEVERITYCVSS Score & Metrics
Base Score
9.8 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Description
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.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-22
Source
NVD
Vendor
rollup
Product
rollup
External References
- https://github.com/rollup/rollup/commit/c60770d7aaf750e512c1b2774989ea4596e660b2
- https://github.com/rollup/rollup/commit/c8cf1f9c48c516285758c1e11f08a54f304fd44e
- https://github.com/rollup/rollup/commit/d6dee5e99bb82aac0bee1df4ab9efbde455452c3
- https://github.com/rollup/rollup/releases/tag/v2.80.0
- https://github.com/rollup/rollup/releases/tag/v3.30.0
- https://github.com/rollup/rollup/releases/tag/v4.59.0
- https://github.com/rollup/rollup/security/advisories/GHSA-mw96-cpmx-2vgc
Discussion (0)
Add Comment
No comments yet. Be the first!