CVE-2026-27606Rollup Path Traversal
Rollup 4 has Arbitrary File Write via Path Traversal
Published Feb 25, 2026 · Updated Sep 12, 2026 · Also known as DEBIAN-CVE-2026-27606, GHSA-mw96-cpmx-2vgc, ROOT-APP-NPM-CVE-2026-27606, UBUNTU-CVE-2026-27606
Key Facts
Patch immediately- CVE-2026-27606 is a high-severity vulnerability (CVSS 8.8 v4) affecting Rollup (Rollupjs), 2.5 (Ansible Automation Platform), 2.6 (Ansible Automation Platform) and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 1.6% probability of exploitation in the next 30 days.
- Fixed versions are available, including @rootio/rollup 1.32.1-root.io.1, @rootio/rollup 2.67.3-root.io.1, @rootio/rollup 2.79.1-root.io.1.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v4
8.8
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
1.6%
Higher than 75.1% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
36/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
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.
Affected Products
169 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| RollupRollupjs | >= < 2.80.0 | 2.80.0 |
| 2.5Ansible Automation Platform | See advisory | n/a |
| 2.6Ansible Automation Platform | See advisory | 1777311120 |
| 3.27Openshift Devspaces | See advisory | 1776718585 |
| 3.10Quay | See advisory | 1773971077 |
Patched Releases
@rootio/rollup
1.32.1-root.io.1, 2.67.3-root.io.1, 2.79.1-root.io.1, 2.79.2-root.io.1, 3.29.4-root.io.1, 3.29.5-root.io.1, 4.37.0-root.io.1, 4.39.0-root.io.1, 4.39.0-root.io.2, 4.40.1-root.io.1, 4.50.0-root.io.1, 4.50.0-root.io.2, 4.53.3-root.io.1, 4.53.3-root.io.2, 4.53.3-root.io.3, 4.55.1-root.io.1, 4.55.1-root.io.2
ansible-automation-platform
26/gateway-rhel9:1777311120, 1777311120
arangodb-3.11
3.11.14.5-r9
arangodb-3.12
3.12.9.4-r23
automation-gateway
0:2.5.20260422-2.el8ap, 0:2.5.20260422-2.el9ap
automation-platform-ui
0:2.6.8-1.el9ap
cockpit
298-150500.3.12.1
cockpit-bridge
298-150500.3.12.1
cockpit-networkmanager
298-150500.3.12.1
cockpit-selinux
298-150500.3.12.1
cockpit-storaged
298-150500.3.12.1
cockpit-system
298-150500.3.12.1
cockpit-ws
298-150500.3.12.1
dracut-saltboot
1.1.0-150000.1.65.1, 1.1.0-159000.2.2.1
dracut-wireless
0.1.1595937550.0285244-159000.2.2.1
firewalld-prometheus-config
0.1-150000.3.67.1, 0.1-150000.3.72.2, 0.1-150002.3.8.1, 0.1-159000.4.3.2
golang-github-boynux-squid_exporter
1.13.0-150000.1.12.1, 1.13.0-159000.2.2.1
golang-github-lusitaniae-apache_exporter
1.0.10-150000.1.26.1, 1.0.10-150002.3.6.1, 1.0.10-159000.2.2.1
golang-github-prometheus-alertmanager
0.28.1-159000.12.2.1
golang-github-prometheus-node_exporter
1.10.2-150100.3.41.2, 1.9.1-159000.4.2.1
golang-github-prometheus-prometheus
3.5.0-150000.3.67.1, 3.5.0-150002.3.8.1, 3.5.0-159000.4.3.2, 3.5.3-150000.3.72.2
golang-github-prometheus-promu
0.17.0-150000.3.30.1
golang-github-QubitProducts-exporter_exporter
0.4.0-150000.1.21.1, 0.4.0-150000.1.24.2, 0.4.0-159000.2.2.1
grafana
11.6.11-150000.1.90.1, 11.6.11-159000.2.3.2, 11.6.14+security01-150000.1.95.2, 11.6.14+security01-150002.4.14.1
heroic-games-launcher
2.20.0-2.1
Timeline
Publicly disclosed
Feb 25, 2026
Last updated
Sep 12, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisorycve.org · CVERecord
- advisorynvd.nist.gov · CVE-2026-27606
- advisorysecurity-tracker.debian.org · CVE-2026-27606
- advisoryubuntu.com · CVE-2026-27606
- advisoryRHSA-2026:10175
FAQ
Common Questions.
Rollup is a module bundler for JavaScript.
Affected: Rollup (Rollupjs) versions >= < 2.80.0; 2.5 (Ansible Automation Platform); 2.6 (Ansible Automation Platform), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including @rootio/rollup 1.32.1-root.io.1, @rootio/rollup 2.67.3-root.io.1, @rootio/rollup 2.79.1-root.io.1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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