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Malicious code in imgdecode (npm)

GHSA-hw69-vrvf-87h5

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 imgdecode

    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 (8d35e9f4292a2c57b47ea07b9202c69623374c4c6afaa588ff849d213ffbbef2) imgdecode@1.0.2 presents itself as a native image buffer decoder but ships a 224-byte index.js whose only runtime effect on require is to load the sibling package 'imgbundle' and attempt to require./prebuilds/win32-x64/imgdecode.node, swallowing errors. The exported API is a single load() that returns null, which does not correspond to the README's advertised exec(cmd, args) interface. The bundled prebuilds/win32-x64/imgdecode.node is a 703 KB Windows PE containing a non-standard.fptable3 section and obfuscated Windows API name fragments (e.g. 'EXClos', 'E\eHan', 'EPSlee' consistent with Close/Handle/Sleep under API-name hashing or XOR-stub packing) and no normal Node-API registration symbols — characteristics of packed/obfuscated native code, not a legitimate image-decoder addon. A.node file loaded via require executes native code…

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

    Published from osv record MAL-2026-18196

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-hw69-vrvf-87h5

Advisory: Malicious code in imgdecode (npm)
IDs: GHSA-hw69-vrvf-87h5
Record: https://patchnext.com/advisories/mal-2026-18196 (revision 1, 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 imgdecode: affected every version

## Suggested inspection (read-only)
- `npm ls imgdecode --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 imgdecode.
- 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-2026-18196 (OSV record MAL-2026-18196 lists affected ranges: npm imgdecode >=0)

Commands are suggestions: review each one before running it.

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