Skip to main content

Malicious code in tabbables (npm)

0
Critical
Published: 08/28/2026 (08/28/2026, 23:13:26 UTC)
Source: GCVE Database
Product: tabbables

Description

The npm package 'tabbables' version 45.0.0 contains a malicious self-referential dependency that points to an external URL serving arbitrary code. Installing this package executes lifecycle scripts from an untrusted source without integrity checks, potentially compromising the host system. The package's index.js is inert, making the external tarball the primary attack vector. Any system with this package installed should be considered fully compromised, and all secrets on that system should be rotated immediately.

Affected software

npmghsa
tabbables
Affected versions
=45.0.0

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/09/2026, 20:38:08 UTC

Technical Analysis

The 'tabbables' npm package version 45.0.0 declares a dependency on itself using a raw HTTPS URL (https://repo.securityctrl.com/tabbables) instead of a version range from the npm registry. This causes npm to fetch and install a tarball from an untrusted external source during installation, executing any lifecycle scripts it contains without integrity verification or provenance. The shipped index.js is inert, so the malicious payload is delivered solely via the external tarball, which can be changed at any time by the controller of repo.securityctrl.com. This creates a dependency confusion scenario with an implausibly high version number competing with internal packages of the same name. The package is considered fully malicious, and any system running it is likely compromised.

Potential Impact

Systems that have installed or are running the 'tabbables' package version 45.0.0 are considered fully compromised. The malicious package can execute arbitrary code during installation, potentially allowing attackers full control over the affected system. All secrets and keys stored on the compromised system should be rotated immediately from a different, trusted machine. Removing the package alone does not guarantee removal of all malicious software or backdoors introduced by the package.

Defensive Guidance

Remove the 'tabbables' package version 45.0.0 immediately from all affected systems. Rotate all secrets, keys, and credentials that were stored or used on compromised machines from a separate, secure environment. Because the package executes arbitrary code during installation and may have fully compromised the system, consider rebuilding or thoroughly auditing affected systems. There is no official patch or fix available; the package itself is malicious. Avoid installing packages that declare dependencies via raw URLs without integrity checks.

Pro Console: star threats, build custom feeds, automate alerts via Slack, email & webhooks.Upgrade to Pro

Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-15524
Osv Schema Version
1.7.4
Ecosystems
["npm"]

Threat ID: 6a92f7e3acd9273b49e75d06

Added to database: 08/29/2026, 15:16:51 UTC

Last enriched: 09/09/2026, 20:38:08 UTC

Last updated: 10/02/2026, 09:49:54 UTC

Views: 24

Community Reviews

0 reviews

Crowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.

Sort by
Loading community insights…

Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.

Actions

PRO

Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.

Please log in to the Console to use AI analysis features.

Need more coverage?

Upgrade to Pro Console for AI refresh and higher limits.

For incident response and remediation, OffSeq services can help resolve threats faster.

Latest Threats

Breach by OffSeqOFFSEQFRIENDS — 25% OFF

Check if your credentials are on the dark web

Instant breach scanning across billions of leaked records. Free tier available.

Scan now
OffSeq TrainingCredly Certified

Lead Pen Test Professional

Technical5-day eLearningPECB Accredited
View courses