# Electron has ASAR Integrity Bypass via resource modification

Advisory record · `GHSA-vmqv-hx8q-j7mg`

- **Identifiers:** `GHSA-vmqv-hx8q-j7mg` · `CVE-2025-55305`
- **State:** Confirmed
- **Severity:** CVSS 6.1 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-94](https://cwe.mitre.org/data/definitions/94.html) · [CWE-829](https://cwe.mitre.org/data/definitions/829.html)
- **Tags:** [Code injection](https://agentprime.io/advisories/tag/code-injection.md) · [CWE-829](https://agentprime.io/advisories/tag/cwe-829.md)
- **Published:** 3 Sept 2025
- **Updated:** 5 Sept 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 3 Sept 2025, 21:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `electron` (npm): affected `<35.7.5 || >=36.0.0-alpha.1, <36.8.1 || >=37.0.0-alpha.1, <37.3.1 || >=38.0.0-alpha.1, <38.0.0-beta.6`; fixed in `35.7.5`, `36.8.1`, `37.3.1`, `38.0.0-beta.6`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 6.1 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0029, the 21st percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 3 Sept 2025. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-vmqv-hx8q-j7mg](https://github.com/advisories/GHSA-vmqv-hx8q-j7mg)
- [OSV: GHSA-vmqv-hx8q-j7mg](https://osv.dev/vulnerability/GHSA-vmqv-hx8q-j7mg)
- <https://github.com/electron/electron/security/advisories/GHSA-vmqv-hx8q-j7mg>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-55305>
- <https://github.com/electron/electron/pull/48101>
- <https://github.com/electron/electron/pull/48102>
- <https://github.com/electron/electron/pull/48103>
- <https://github.com/electron/electron/pull/48104>
- <https://github.com/electron/electron/commit/23a02934510fcf951428e14573d9b2d2a3c4f28b>
- <https://github.com/electron/electron/commit/2e5a0b7220ebf955c6785cc5adb2e2b1cf77dac1>
- <https://github.com/electron/electron/commit/3f92511cdecc39f46b0e86cce40a0c691e301c9d>
- <https://github.com/electron/electron/commit/fdf29ce83870109d403f5c23ae529dbd0e8f4fee>
- <https://github.com/electron/electron>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-vmqv-hx8q-j7mg>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-vmqv-hx8q-j7mg/>. Everything for agents: <https://agentprime.io/llms.txt>.