Skip to main content
Public proof of conceptFix available

CVE-2026-27606

A public proof of concept exists; no exploitation attested.

  • Published2026-02-25
  • Fixed in4.59.0 · 3.30.0 · 2.80.0
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-02-2503:16CVE publishedNVD

Versions per branch

NVD · OSV
Rollupjs rollup
BranchAffectedFixed in
4.x≥ 4.0.0, < 4.59.04.59.0
3.x≥ 3.0.0, < 3.30.03.30.0
2.80< 2.80.02.80.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • rollup
    Affected
    • = < 2.80.0no fix stated
    • = >= 3.0.0, < 3.30.0no fix stated
    • = >= 4.0.0, < 4.59.0no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-02-25

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • @rootio/rollupRoot:npmall versions · fixed in 4.50.0-root.io.1
  • @rootio/rollupRoot:npmall versions · fixed in 1.32.1-root.io.1
  • @rootio/rollupRoot:npmall versions · fixed in 2.67.3-root.io.1
  • @rootio/rollupRoot:npmall versions · fixed in 2.79.1-root.io.1
  • @rootio/rollupRoot:npmall versions · fixed in 2.79.2-root.io.1
  • @rootio/rollupRoot:npmall versions · fixed in 3.29.4-root.io.1
  • @rootio/rollupRoot:npmall versions · fixed in 3.29.5-root.io.1
  • @rootio/rollupRoot:npmall versions · fixed in 4.37.0-root.io.1

157 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-27606 Red Hat Product Security26 products fixed · 12 known affected

    rollup: Rollup: Remote Code Execution via Path Traversal Vulnerability

    openshift-pipelines/pipelines-hub-api-rhel8 as a component of OpenShift Pipelines · openshift-pipelines/pipelines-hub-db-migration-rhel8 as a component of OpenShift Pipelines · openshift-pipelines/pipelines-hub-ui-rhel8 as a component of OpenShift Pipelines · +9 more

  • RHSA-2026:13545 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Container Release Update

  • RHSA-2026:13512 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update

  • RHSA-2026:13508 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update

  • RHSA-2026:10175 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.27.1 Release.

  • RHSA-2026:8483 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Kiali 1.73.29 for Red Hat OpenShift Service Mesh 2.6

5 more advisories

Full record on NVD

Fix

  1. Update Rollupjs rollup to 4.59.0 · 3.30.0 · 2.80.0
  2. Vendor fix Red Hat Product Security RHSA-2026:13545 · 4 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.6#Upgrade
  3. Vendor fix Red Hat Product Security RHSA-2026:13512 · 2 productsFor details on how to apply this update, refer to Ansible Automation Platform documentation.
  4. Vendor fix Red Hat Product Security RHSA-2026:10175 · 4 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  5. Vendor fix Red Hat Product Security RHSA-2026:8483 · 4 productsSee Kiali 1.73.29 documentation at https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/service_mesh/service-mesh-2-x
  6. Vendor fix Red Hat Product Security RHSA-2026:6802 · 1 productFor more about Red Hat Developer Hub, see References links
  7. Vendor fix Red Hat Product Security RHSA-2026:5665 · 3 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2026-02-25
  • CNACVSS 4.08.8known since 2026-10-23
  • CNACVSS 3.19.1known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-22known since 2026-10-23
  • FIRST EPSSEPSS score1.7 %2026-11-08
  • PoC-in-GitHubproof of concept1known since 2026-11-01
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2026-02-25

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
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
Published
2026-02-25
Last Modified
2026-09-10
NVD status
Modified
GitHub Advisory
GHSA-mw96-cpmx-2vgc

Frequently asked questions

What is CVE-2026-27606?

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.

Is CVE-2026-27606 actively exploited?

A proof-of-concept exploit exists for CVE-2026-27606, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-27606?

CVE-2026-27606 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Running rollup? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record