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Vulnerability details: VCID-59fc-ch9h-a7fu
Vulnerability ID VCID-59fc-ch9h-a7fu
Aliases CVE-2026-34780
GHSA-jfqg-hf23-qpw2
Summary Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From versions 39.0.0-alpha.1 to before 39.8.0, 40.0.0-alpha.1 to before 40.7.0, and 41.0.0-alpha.1 to before 41.0.0-beta.8, apps that pass VideoFrame objects (from the WebCodecs API) across the contextBridge are vulnerable to a context isolation bypass. An attacker who can execute JavaScript in the main world (for example, via XSS) can use a bridged VideoFrame to gain access to the isolated world, including any Node.js APIs exposed to the preload script. Apps are only affected if a preload script returns, resolves, or passes a VideoFrame object to the main world via contextBridge.exposeInMainWorld(). Apps that do not bridge VideoFrame objects are not affected. This issue has been patched in versions 39.8.0, 40.7.0, and 41.0.0-beta.8.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-668 Exposure of Resource to Wrong Sphere
CWE-1188 Initialization of a Resource with an Insecure Default
CWE-501 Trust Boundary Violation
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 8.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-34780.json
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34780
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34780
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34780
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-jfqg-hf23-qpw2
cvssv3.1 8.3 https://github.com/electron/electron
generic_textual HIGH https://github.com/electron/electron
cvssv3.1 8.3 https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
cvssv3.1 8.4 https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
cvssv3.1_qr HIGH https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
generic_textual HIGH https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
ssvc Track https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
cvssv3.1 8.3 https://nvd.nist.gov/vuln/detail/CVE-2026-34780
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-34780
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-34780.json
https://api.first.org/data/v1/epss?cve=CVE-2026-34780
https://github.com/electron/electron
https://nvd.nist.gov/vuln/detail/CVE-2026-34780
2455020 https://bugzilla.redhat.com/show_bug.cgi?id=2455020
GHSA-jfqg-hf23-qpw2 https://github.com/advisories/GHSA-jfqg-hf23-qpw2
GHSA-jfqg-hf23-qpw2 https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-34780.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Found at https://github.com/electron/electron
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Found at https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Found at https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-04-06T15:49:13Z/ Found at https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-34780
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.02732
EPSS Score 0.00014
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:47:13.059194+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/34xxx/CVE-2026-34780.json 38.6.0