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Unratedamended

Malicious code in string-target-mapper-hash (npm)

GHSA-wfcx-722r-fg5h

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 string-target-mapper-hash

    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 (4f356f513bed48330cd1a0538e53ac429f5570385e8b0bcc3fcc5c94876e437b) package.json declares its sole dependency `shard-writer-parser-mutex` as a bare HTTPS URL to a non-registry host (`https://artifacts.creditslib.com/npm/shard-writer-parser-mutex`) rather than a semver range against the npm registry. On `npm install`, npm fetches whatever tarball that URL currently returns and installs it, executing any lifecycle scripts it contains; the shipped `index.js` is a one-line re-export, so loading this package also loads code from that host. The URL is unpinned (no version, no commit, no integrity hash), the host is unrelated to the npm registry, and the content served there can change at any time without any republish of this package. The declared dependency name also mirrors the host package's own naming shape, consistent with a dependency-confusion lure where the manifest itself is the delivery…

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

    Amended from osv record MAL-2026-18342

  2. Revision 1 · created ·

    Published from osv record MAL-2026-18342

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-wfcx-722r-fg5h

Advisory: Malicious code in string-target-mapper-hash (npm)
IDs: GHSA-wfcx-722r-fg5h
Record: https://patchnext.com/advisories/mal-2026-18342 (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 string-target-mapper-hash: affected every version

## Suggested inspection (read-only)
- `npm ls string-target-mapper-hash --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 string-target-mapper-hash.
- 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-2026-18342 (OSV record MAL-2026-18342 lists affected ranges: npm string-target-mapper-hash >=0)

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