CVE-2026-86711 json
electerm before 5.3.15 Arbitrary Command Execution via Unvalidated runGlobalAsync IPC Bridge
published 2mo ago modified 2mo ago also EUVD-2026-72687 , GHSA-qc8j-6jr2-qr32
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository electerm/electerm. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 7.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- electerm electerm 5.3.15
Is CVE-2026-86711 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.5 | 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 |
| CNA | 3.1 | 7.4 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 7.5 | 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:X/V:X/RE:X/U:X |
Affected products
- electerm electerm
Classification
- Weakness
-
- CWE-749 Exposed Dangerous Method or Function
References
-
github.com
/electerm/electerm/commit/b1f880534b8ae066c5d25bbf291ca7437e052750
patch
-
github.com
/electerm/electerm/security/advisories/GHSA-qc8j-6jr2-qr32
vendor-advisory, advisory
-
github.com
/electerm/electerm/issues/4509
issue-tracking
-
github.com
/electerm/electerm/releases/tag/v5.3.15
release-notes
-
github.com
/electerm/electerm/blob/v5.3.5/src/app/lib/ipc.js
technical-description
-
github.com
/electerm/electerm
product
-
vulncheck.com
/advisories/electerm-before-5.3.15-arbitrary-command-execution-via-unvalidated-runglobalasync-ipc-bridge
third-party-advisory
Sources
- CVE List CVE-2026-86711
- NVD CVE-2026-86711
- Maintainer advisory GHSA-qc8j-6jr2-qr32
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of electerm/electerm published their own advisory on GitHub. Reviewed sources take precedence over it.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.