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CVE-2026-102675

Electron: File and HTTP protocol handlers allow cross-origin reads without corsEnabled

HIGH
7.4
CVSS Score
Published: September 29, 2026 at 04:54 PM UTC
Updated: October 27, 2026 at 06:41 PM UTC
2 products affected across 2 vendorsElectronElectron

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Severity
HIGH7.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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, responses served through protocol.registerFileProtocol or protocol.registerHttpProtocol for a custom scheme registered with supportFetchAPI enabled but corsEnabled disabled could remain script-readable across origins. This residual issue completes the remediation for CVE-2026-70604. Applications are affected only when they expose such a scheme and load untrusted content in the same session. Schemes intentionally registered with corsEnabled enabled remain cross-origin readable by design. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Electron· Electronjsnpm
95%
v < 41.10.642.0.0 ≤ v < 42.9.243.0.0 ≤ v < 43.4.144.0.0
Electron· Electron
90%
v < 41.10.642.0.0-alpha.1 ≤ v < 42.9.243.0.0-alpha.1 ≤ v < 43.4.144.0.0-alpha.1 ≤ v < 44.0.0-beta.5
Affected range stops below 41.10.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 42.9.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 43.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 44.0.0-beta.5, so it looks safe — our inference, not a vendor statement

References (9)

x_refsource_CONFIRMVendor AdvisoryMitigation
Source: cverecord
https://github.com/electron/electron/security/advisories/GHSA-j84w-jfhq-vhvj
x_refsource_MISCPatch
Source: cverecord
https://github.com/electron/electron/commit/4d2784cc8592471ee2276235b8c2a03efddf937d
x_refsource_MISCPatch
Source: cverecord
https://github.com/electron/electron/commit/80178e4631cb2f6a5e42f8e793b2ae9624e78a0d
x_refsource_MISCPatch
Source: cverecord
https://github.com/electron/electron/commit/c595b05976e7a885465b043d17e00a92fc3c3397
x_refsource_MISCPatch
Source: cverecord
https://github.com/electron/electron/commit/ef75c4b98caaa3ebc615f1eba302027028ee04d2
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/electron/electron/releases/tag/v41.10.6
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/electron/electron/releases/tag/v42.9.2
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/electron/electron/releases/tag/v43.4.1

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-346

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