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Medium, CVSS 6.1amended

ASAR Integrity bypass via filetype confusion in electron

CVE-2023-44402GHSA-7m48-wc93-9g85

What to do

Partial vendor fix. 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 electron

    Affected
    < 22.3.24>= 24.0.0-alpha.1, < 24.8.3>= 25.0.0-alpha.1, < 25.8.1>= 26.0.0-alpha.1, < 26.2.1>= 27.0.0-alpha.1, < 27.0.0-alpha.7>= 23.0.0-alpha.1, <= 23.3.13
    Fixed in
    26.2.1, 25.8.1, 22.3.24, 27.0.0-alpha.7, 24.8.3

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
6.1 · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L
EPSS
  • CVE-2023-44402: 0.21% estimated exploitation activity in the next 30 days; percentile 10.86 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Impact This only impacts apps that have the embeddedAsarIntegrityValidation and onlyLoadAppFromAsar fuses enabled. Apps without these fuses enabled are not impacted. This issue is specific to macOS as these fuses are only currently supported on macOS. Specifically this issue can only be exploited if your app is launched from a filesystem the attacker has write access too. i.e. the ability to edit files inside the resources folder in your app installation on Windows which these fuses are supposed to protect against. Workarounds There are no app side workarounds, you must update to a patched version of Electron. Fixed Versions 27.0.0-alpha.7 26.2.1 25.8.1 24.8.3 22.3.24 For more information If you have any questions or comments about this advisory, email us at security@electronjs.org

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

    Amended from ghsa record GHSA-7m48-wc93-9g85

  2. Revision 1 · created ·

    Published from osv record GHSA-7m48-wc93-9g85

Agent brief

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

# Patch Next advisory brief: CVE-2023-44402

Advisory: ASAR Integrity bypass via filetype confusion in electron
IDs: CVE-2023-44402, GHSA-7m48-wc93-9g85
Record: https://patchnext.com/advisories/cve-2023-44402 (revision 2, source checked 26 Oct 2026, 12:31 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: electron 27.0.0-alpha.7, 26.2.1, 25.8.1, 24.8.3, 22.3.24. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm electron: affected < 22.3.24; >= 24.0.0-alpha.1, < 24.8.3; >= 25.0.0-alpha.1, < 25.8.1; >= 26.0.0-alpha.1, < 26.2.1; >= 27.0.0-alpha.1, < 27.0.0-alpha.7; >= 23.0.0-alpha.1, <= 23.3.13; fixed in 26.2.1, 25.8.1, 22.3.24, 27.0.0-alpha.7, 24.8.3

## Suggested inspection (read-only)
- `npm ls electron --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 electron.
- 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/GHSA-7m48-wc93-9g85 (OSV record GHSA-7m48-wc93-9g85 lists affected ranges: npm electron >=0 =24.0.0-alpha.1 =25.0.0-alpha.1 =26.0.0-alpha.1 =27.0.0-alpha.1 =23.0.0-alpha.1 <=23.3.13)
- Verified: https://github.com/advisories/GHSA-7m48-wc93-9g85 (GitHub-reviewed advisory GHSA-7m48-wc93-9g85 lists affected ranges: npm electron >=0 =24.0.0-alpha.1 =25.0.0-alpha.1 =26.0.0-alpha.1 =27.0.0-alpha.1 =23.0.0-alpha.1 <=23.3.13)

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