CVE-2026-70609

MEDIUMPre-NVD 5.75.7—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.7Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, the mode option of webContents.openDevTools() was not sanitized before use by the DevTools frontend. If an attacker can influence this value, script under their control may run in the DevTools context, which in unsandboxed configurations has access to Node.js, including when untrusted input reaches the mode argument of openDevTools() or untrusted content calls openDevTools() on a webview it embeds. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.

CVSS v3
5.7
EG Score
5.7(medium)
EG Risk
26(Track)
EG Risk 26/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity57% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 6, 2026

Advisory Details (10)

Auto-updated Aug 5, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

electron v39.8.7

Patch available: electron/electron v39.8.7

https://github.com/electron/electron/releases/tag/v39.8.7
github_commit

commit efc4d3c6b6f1 (electron/electron)

Fix landed in electron/electron commit efc4d3c6b6f1 — awaiting tagged release

https://github.com/electron/electron/commit/efc4d3c6b6f1c04f658ca0d9d2512dcfe78eb7ba
github_commit

commit 969741f9f847 (electron/electron)

Fix landed in electron/electron commit 969741f9f847 — awaiting tagged release

https://github.com/electron/electron/commit/969741f9f847c5c583f6bbc63ca22549dbd954ce
github_commit

commit 2046ae87731d (electron/electron)

Fix landed in electron/electron commit 2046ae87731d — awaiting tagged release

https://github.com/electron/electron/commit/2046ae87731d80a7b535512ae19acb529e10e33b
github_commit

commit 04614eed1798 (electron/electron)

Fix landed in electron/electron commit 04614eed1798 — awaiting tagged release

https://github.com/electron/electron/commit/04614eed17986bddc43eb509ec870424ee6a47d1
github_pr

fix: validate `dock_state_ `against allowlist before JS execution

Fix merged in electron/electron PR #50668 on 2026-04-03 — awaiting tagged release

https://github.com/electron/electron/pull/50668
github_pr

fix: validate `dock_state_ `against allowlist before JS execution

Fix merged in electron/electron PR #50667 on 2026-04-03 — awaiting tagged release

https://github.com/electron/electron/pull/50667
github_pr

fix: validate `dock_state_ `against allowlist before JS execution

Fix merged in electron/electron PR #50666 on 2026-04-03 — awaiting tagged release

https://github.com/electron/electron/pull/50666
github_pr

fix: validate `dock_state_ `against allowlist before JS execution

Fix merged in electron/electron PR #50665 on 2026-04-03 — awaiting tagged release

https://github.com/electron/electron/pull/50665
github Patch Available

DevTools JavaScript Injection via Unsanitized Dock State Parameter · Advisory · electron/electron · GitHub

https://github.com/electron/electron/security/advisories/GHSA-4f78-qhmw-8j8m

Vendor Advisories for CVE-2026-70609(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
electron—42.0.0-beta.1—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 10:29 UTCEG score recompute
  3. 2026-08-19 17:04 UTCEPSS rescore
  4. 2026-08-19 11:45 UTCEG score recompute
  5. 2026-08-18 13:49 UTCEPSS rescore
  6. 2026-08-18 13:49 UTCEPSS rescore
  7. 2026-08-17 14:15 UTCEG score recompute
  8. 2026-08-17 13:47 UTCEPSS rescore
  9. 2026-08-16 15:31 UTCEG score recompute
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 02:15 UTCEPSS rescore
  13. 2026-08-15 16:47 UTCEG score recompute
  14. 2026-08-15 01:31 UTCEPSS rescore
  15. 2026-08-14 18:02 UTCEG score recompute
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-12 20:34 UTCEG score recompute
  18. 2026-08-12 13:51 UTCEPSS rescore
  19. 2026-08-11 21:50 UTCEG score recompute
  20. 2026-08-11 00:00 UTCEPSS rescore
  21. 2026-08-10 00:22 UTCEG score recompute
  22. 2026-08-09 13:47 UTCEPSS rescore
  23. 2026-08-09 01:38 UTCEG score recompute
  24. 2026-08-08 16:37 UTCEPSS rescore
  25. 2026-08-08 02:53 UTCEG score recompute
Show 7 more
  1. 2026-08-07 04:09 UTCEG score recompute
  2. 2026-08-06 13:47 UTCEPSS rescore
  3. 2026-08-06 05:25 UTCEG score recompute
  4. 2026-08-06 04:25 UTCEG score recompute
  5. 2026-08-05 18:30 UTCEG score recompute
  6. 2026-08-05 17:56 UTCEG score recompute
  7. 2026-08-05 17:55 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-70609?
CVE-2026-70609 is a medium vulnerability published on August 5, 2026. Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, the mode option of webContents.openDevTools() was not sanitized before use by the DevTools frontend. If an attacker can influence this value,…
When was CVE-2026-70609 disclosed?
CVE-2026-70609 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70609 actively exploited?
CVE-2026-70609 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 74.8% of all scored CVEs.
What is the CVSS score of CVE-2026-70609?
CVE-2026-70609 has a CVSS v3 base score of 5.7 (NVD).
How do I remediate CVE-2026-70609?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70609, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-70609

Explore →

Is Your Infrastructure Affected by CVE-2026-70609?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs