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Vulnerability record · CVE-2026-86711 · published 8 September 2026

CVE-2026-86711: electerm before 5.3.15 exposes 40+ main-process functions through an unvalidated Electron IPC handler with no …

electerm before 5.3.15 exposes 40+ main-process functions through an unvalidated Electron IPC handler with no function-name allowlist or sender validation. Renderer-side script execution can invoke openFileWithEditor and other functions with arbitrary arguments to execute system commands in the main process.

7.5 CVSS 4.0 High EPSS 0.18% · top 92.9% CWE-749 · CWE-749 Deferred
7.5CVSS 4.0 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
7References
8 Sep 2026Last modified by NVD

Description

electerm before 5.3.15 exposes 40+ main-process functions through an unvalidated Electron IPC handler with no function-name allowlist or sender validation. Renderer-side script execution can invoke openFileWithEditor and other functions with arbitrary arguments to execute system commands in the main process.

CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/electerm/electerm
https://github.com/electerm/electerm/blob/v5.3.5/src/app/lib/ipc.js
https://github.com/electerm/electerm/commit/b1f880534b8ae066c5d25bbf291ca7437e052750
https://github.com/electerm/electerm/issues/4509
https://github.com/electerm/electerm/releases/tag/v5.3.15
https://github.com/electerm/electerm/security/advisories/GHSA-qc8j-6jr2-qr32
https://www.vulncheck.com/advisories/electerm-before-5.3.15-arbitrary-command-execution-via-unvalidated-runglobalasync-i

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Source: NIST National Vulnerability Database (record CVE-2026-86711), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.