Electron: Windows opened from a sandboxed top-level document do not inherit its sandbox restrictions (electron electron)

CVE-2026-102674
HIGH 8.2

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 15 ()
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Analyzed

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, windows opened from a sandboxed top-level document did not inherit that document's active HTML sandbox restrictions. Untrusted content in a sandboxed top-level document that was permitted to open popups could therefore create a window with the Electron application's full origin instead of the restricted origin intended by the sandbox. Applications that deny such popups with setWindowOpenHandler are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.

Weaknesses (CWE)

  • CWE-266 — Incorrect Privilege Assignment
  • CWE-693 — Protection Mechanism Failure

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:NGitHub_M
CVSS 3.1HIGH 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:NNVD · security-advisories@github.com (Secondary)
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NNVD · nvd@nist.gov (Primary)

Advisories

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
electron · electronaffected < 41.10.6 ; affected >= 42.0.0-alpha.1, < 42.9.2 ; affected >= 43.0.0-alpha.1, < 43.4.1 ; affected >= 44.0.0-alpha.1, < 44.0.0-beta.5

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD