Paper/Archive/CVE-2026-27606

CVE-2026-27606

rollup rollup — Rollup 4 has Arbitrary File Write via Path Traversal

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
rollup< 2.80.0–CNA
rollup>= 3.0.0, < 3.30.0–CNA
rollup>= 4.0.0, < 4.59.0–CNA
Red Hat Ansible Automation Platform 2.5 for RHEL 8see advisory0:2.5.20260422-2.el8apredhat-SADP
Red Hat Ansible Automation Platform 2.5 for RHEL 9see advisory0:2.5.20260422-2.el9apredhat-SADP
Red Hat Ansible Automation Platform 2.6 for RHEL 9see advisory0:2.6.8-1.el9apredhat-SADP
Red Hat Ansible Automation Platform 2.6see advisory1777311120redhat-SADP
Red Hat Developer Hub 1.8see advisory1774545605redhat-SADP
Red Hat Developer Hub 1.9see advisory1775140647redhat-SADP
Red Hat OpenShift Dev Spaces 3.27see advisory1776718585redhat-SADP
Red Hat OpenShift Service Mesh 2.6see advisory1773059917redhat-SADP
Red Hat Quay 3.10see advisory1773971077redhat-SADP

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
redhat-SADP (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
GitHub_M (CNA)8.8CVSS: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
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refgithub.com/rollup/rollup/security/advisories/GHSA-mw96-cpmx-2vgcrefgithub.com/rollup/rollup/commit/c60770d7aaf750e512c1b2774989ea4596e660b2refgithub.com/rollup/rollup/commit/c8cf1f9c48c516285758c1e11f08a54f304fd44erefgithub.com/rollup/rollup/commit/d6dee5e99bb82aac0bee1df4ab9efbde455452c3refgithub.com/rollup/rollup/releases/tag/v2.80.0refgithub.com/rollup/rollup/releases/tag/v3.30.0refgithub.com/rollup/rollup/releases/tag/v4.59.0refaccess.redhat.com/security/cve/CVE-2026-27606refbugzilla.redhat.com/show_bug.cgi?id=2442530refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27606.jsonadvisoryaccess.redhat.com/errata/RHSA-2026:13512advisoryaccess.redhat.com/errata/RHSA-2026:13508advisoryaccess.redhat.com/errata/RHSA-2026:13545advisoryaccess.redhat.com/errata/RHSA-2026:6174advisoryaccess.redhat.com/errata/RHSA-2026:6802advisoryaccess.redhat.com/errata/RHSA-2026:10175advisoryaccess.redhat.com/errata/RHSA-2026:8483advisoryaccess.redhat.com/errata/RHSA-2026:5132advisoryaccess.redhat.com/errata/RHSA-2026:5665advisoryaccess.redhat.com/errata/RHSA-2026:5649