5.4

CVE-2026-70612: electron Improper Access Control

CVSS: 5.4v3.1MediumAnalyzed
AliasesGHSA-p2rr-rvmm-c5fp
Published 05-08-2026Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2026-70612 is a medium (CVSS 5.4) Improper Access Control vulnerability in electron. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.43%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-08-2026
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could cause an OS-registered external application to be launched. The frame sandbox state was also not made available to the app permission handlers, affecting apps that render untrusted content in sandboxed iframes and grant the openExternal permission by default when no setPermissionRequestHandler is installed. This issue is fixed in 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

-0.02 pp

From 0.45% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Electron1 product
  • electron< 39.8.8 | ≥ 40.0.0-alpha.1, < 40.9.0 | ≥ 41.0.0-alpha.1, < 41.2.1 | ≥ 42.0.0-alpha.1, < 42.0.0-beta.3
Electronjs1 product
  • electronEOL< 39.8.8 | ≥ 40.0.0, < 40.9.0 | ≥ 41.0.0, ≤ 41.2.1 | 42.0.0:alpha1 | 42.0.0:alpha2 | 42.0.0:alpha3 | 42.0.0:alpha4 | 42.0.0:alpha5 | 42.0.0:alpha6 | 42.0.0:beta1 | 42.0.0:beta2
Npm1 product
  • electron< 39.8.8 | ≥ 40.0.0-alpha.1, < 40.9.0 | ≥ 41.0.0-alpha.1, < 41.2.1 | ≥ 42.0.0-alpha.1, < 42.0.0-beta.3

3 vendors · 3 products

References

14 links
Show all 14 references