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Unratedamended

Malicious code in css-overscroll-contain (npm)

GHSA-xjrr-fv8j-9hw7

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm css-overscroll-contain

    Affected
    every version
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

--- _-= Per source details. Do not edit below this line.=-_

Source: amazon-inspector (5d978121f021eb6136e6a34db790556ba757de3bb8fa81981903445baf025d16) The package advertises itself as a CSS overscroll-behavior utility but its shipped modules (thunderboltRegistry.js and sibling files named after Wix-internal registries such as siteAssetsRegistry, editorRegistry, corvidRegistry) run a self-executing IIFE at module load that performs host reconnaissance and bulk credential theft. The IIFE uses child_process.execSync and https.get/fetch to collect host identity (uname, hostname/id), file descriptors, /proc/self/mountinfo, network/DNS data, process environment variables matched by the pattern (KEY|TOKEN|SECRET|AUTH|...), and the Kubernetes service-account token at /var/run/secrets/kubernetes.io/serviceaccount/token, posting each result to the hardcoded endpoint https://dxpoc.gt.tc/callback.php/bb8968d0f67000433bf7005dd5ad2d1f. The same load-time code probes container-escape primitives…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from osv record MAL-2026-17705

  2. Revision 1 · created ·

    Published from osv record MAL-2026-17705

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: GHSA-xjrr-fv8j-9hw7

Advisory: Malicious code in css-overscroll-contain (npm)
IDs: GHSA-xjrr-fv8j-9hw7
Record: https://patchnext.com/advisories/mal-2026-17705 (revision 2, source checked 30 Oct 2026, 06:05 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm css-overscroll-contain: affected every version

## Suggested inspection (read-only)
- `npm ls css-overscroll-contain --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on css-overscroll-contain.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/MAL-2026-17705 (OSV record MAL-2026-17705 lists affected ranges: npm css-overscroll-contain >=0)

Commands are suggestions: review each one before running it.

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