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CVE-2026-27606VulnerabilityPublished Updated

Node rollup: Versions prior to 2.80.0, 3.30.0, and 4.59.0 of the Rollup module bundler (specifically v4.x and present

Affects node-rollupSource GCVE Database

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 27 Oct 2026, 06:42 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10node-rolluppkg:deb/ubuntu/node-rollup?arch=source&distro=stonkingOther threatsAffected
  • =3.30.0-1
  • =3.30.0-5build5
Fixed in–
Ubuntu 26.04 LTSnode-rolluppkg:deb/ubuntu/node-rollup?arch=source&distro=resoluteOther threatsAffected
  • =3.29.5-1
  • =3.30.0-1
Fixed in–
Ubuntu 25.10node-rolluppkg:deb/ubuntu/node-rollup?arch=source&distro=questingOther threatsAffected
  • =3.29.5-1
Fixed in–
Ubuntu 24.04 LTSnode-rolluppkg:deb/ubuntu/node-rollup?arch=source&distro=nobleOther threatsAffected
  • =3.28.0-2
  • =3.29.4-2
  • =3.29.4-3
Fixed in–
Ubuntu 22.04 LTSnode-rolluppkg:deb/ubuntu/node-rollup?arch=source&distro=jammyOther threatsAffected
  • =2.38.4-1
  • =2.42.1-2
  • =2.61.1-5
Fixed in–
Ubuntu 20.04 LTSnode-rolluppkg:deb/ubuntu/node-rollup?arch=source&distro=focalOther threatsAffected
  • 0.50.0-6build3 – 1.12.0-2build3
4 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

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.

References

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