CVE-2026-27606: Rollup 4 has Arbitrary File Write via Path Traversal
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · CWE-22
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Red Hat: OpenShift PipelinesRed Hat: OpenShift Service Mesh 3Red Hat: Red Hat Advanced Cluster Security 4Red Hat: Red Hat AMQ Broker 7Red Hat: Red Hat Ansible Automation Platform 2Red Hat: Red Hat Ansible Automation Platform 2.5 for RHEL 8Red Hat: Red Hat Ansible Automation Platform 2.5 for RHEL 9Red Hat: Red Hat Ansible Automation Platform 2.6Red Hat: Red Hat Ansible Automation Platform 2.6 for RHEL 9Red Hat: Red Hat build of OptaPlanner 8Red Hat: Red Hat Build of Podman Desktop - Tech PreviewRed Hat: Red Hat Developer Hub 1.8Red Hat: Red Hat Developer Hub 1.9Red Hat: Red Hat Enterprise Linux 10Red Hat: Red Hat Enterprise Linux 8Red Hat: Red Hat Enterprise Linux 9Red Hat: Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat: Red Hat Fuse 7Red Hat: Red Hat JBoss Enterprise Application Platform 8Red Hat: Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat: Red Hat OpenShift Container Platform 4Red Hat: Red Hat OpenShift Dev Spaces 3.27Red Hat: Red Hat OpenShift distributed tracing 3Red Hat: Red Hat OpenShift Service Mesh 2.6Red Hat: Red Hat Quay 3.10Red Hat: Red Hat Single Sign-On 7Red Hat: Red Hat Trusted Artifact Signer 1.3Red Hat: Self-service automation portal 2rollup: rollup
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/rollup/rollup/commit/c60770d7aaf750e512c1b2774989ea4596e660b2 (opens in new tab)
- github.com/rollup/rollup/commit/c8cf1f9c48c516285758c1e11f08a54f304fd44e (opens in new tab)
- github.com/rollup/rollup/commit/d6dee5e99bb82aac0bee1df4ab9efbde455452c3 (opens in new tab)
- github.com/rollup/rollup/releases/tag/v2.80.0 (opens in new tab)
- github.com/rollup/rollup/releases/tag/v3.30.0 (opens in new tab)
- github.com/rollup/rollup/releases/tag/v4.59.0 (opens in new tab)
- github.com/rollup/rollup/security/advisories/GHSA-mw96-cpmx-2vgc (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)