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Vulnerability details

8.8/10
CVSS 4.0
CVE-2026-27606
false_positive Published 2026-02-25 Updated 2026-09-10
NVD MITRE OpenCVE
Vulnerability Data from Dependency-Track
Affected versions
Scores
8.8 CVSS 4.0 NVD CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P displayed
9.8 CVSS 3.1 NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Same vulnerability as
GHSA-mw96-cpmx-2vgc false_positive according to EUVD-2026-8589
Analysis Read only
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