Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.3, and 42.0.1, a sandboxed iframe without the allow-popups keyword could still open a new window or trigger setWindowOpenHandler with no user interaction because new-window navigations taking the OpenURL path did not apply the iframe sandbox popup restriction. Apps that embed untrusted content in sandboxed iframes and rely on the absence of allow-popups to prevent window creation are affected, while apps that deny window creation in setWindowOpenHandler or do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in 39.8.10, 41.10.3, and 42.0.1.
CVE-2026-70608
“—” beside the score: it is equal to the CVSS score beside it.
Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. A secondary CVSS source baseline 7.2; sources differ by 0.0.
Also known asEUVD-2026-53564 (ENISA EUVD) · GHSA-9f4c-93c8-jc8g (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.2
- EG Score
- 7.2HIGHmedium confidence
- EG Risk
- 48EG Risk 48/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity72% × 45%Impact severity (EG Severity): CVSS 7.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.4% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.4%
- EPSS %ILE
- 37th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.2): severity, escalated by confirmed exploitation. This CVE's 7.2 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-02). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
August 5, 2026
Last Modified
October 8, 2026
Advisory Details (10)
Auto-updated Aug 5, 2026electron v42.0.1
Patch available: electron/electron v42.0.1
https://github.com/electron/electron/releases/tag/v42.0.1electron v41.10.3
Patch available: electron/electron v41.10.3
https://github.com/electron/electron/releases/tag/v41.10.3electron v39.8.10
Patch available: electron/electron v39.8.10
https://github.com/electron/electron/releases/tag/v39.8.10commit 68cf8b7d9122 (electron/electron)
Fix landed in electron/electron commit 68cf8b7d9122 — awaiting tagged release
https://github.com/electron/electron/commit/68cf8b7d9122260f6b534a69a82c701a56cf159fcommit 57cbe329c4ae (electron/electron)
Fix landed in electron/electron commit 57cbe329c4ae — awaiting tagged release
https://github.com/electron/electron/commit/57cbe329c4ae8aab5ac5ebdcb588adc9a11de0d3commit 3ff23c52ab36 (electron/electron)
Fix landed in electron/electron commit 3ff23c52ab36 — awaiting tagged release
https://github.com/electron/electron/commit/3ff23c52ab364a0afc6ab5bd7851291d3159de57fix: respect iframe sandbox flags on the OpenURL navigation path
Fix merged in electron/electron PR #51439 on 2026-05-05 — awaiting tagged release
https://github.com/electron/electron/pull/51439fix: respect iframe sandbox flags on the OpenURL navigation path
Fix merged in electron/electron PR #51438 on 2026-07-16 — awaiting tagged release
https://github.com/electron/electron/pull/51438fix: respect iframe sandbox flags on the OpenURL navigation path
Fix merged in electron/electron PR #51437 on 2026-05-05 — awaiting tagged release
https://github.com/electron/electron/pull/51437Sandboxed iframe can bypass the allow-popups restriction via the OpenURL navigation path · Advisory · electron/electron · GitHub
https://github.com/electron/electron/security/advisories/GHSA-9f4c-93c8-jc8gVendor Advisories for CVE-2026-70608(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(3)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| npm | electron @ 42.0.1 (fixes >= 42.0.0-alpha.1, < 42.0.1) | — | ghsa |
| npm | electron @ 41.10.3 (fixes >= 40.0.0-alpha.1, < 41.10.3) | — | ghsa |
| npm | electron @ 39.8.10 (fixes < 39.8.10) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| electron | — |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 47× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 150 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 50 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-03 02:03 UTCEG score recompute
- 2026-11-03 02:02 UTCGHSA enrichmentGHSA-9f4c-93c8-jc8g · GitHub severity HIGH · GitHub CVSS 7.2
- 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-11-01 07:40 UTCGHSA enrichmentGHSA-9f4c-93c8-jc8g · GitHub severity HIGH · GitHub CVSS 7.2
- 2026-11-01 07:40 UTCEG score recompute
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-27 17:13 UTCEG score recompute
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-25 14:08 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-19 17:52 UTCEG score recompute
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-18 03:18 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
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- 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-13 08:58 UTCEG score recompute
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-12 15:43 UTCEG score recompute
- 2026-10-11 19:29 UTCEG score recompute
- 2026-10-11 16:44 UTCEG score recompute
- 2026-10-11 14:04 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-08 14:09 UTCEG score recompute
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-06 23:37 UTCEG score recompute
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-05 19:34 UTCEG score recompute
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-04 23:32 UTCEG score recompute
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-04 05:59 UTCEG score recompute
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-03 01:08 UTCEG score recompute
- 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-02 09:52 UTCEG score recompute
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-01 02:16 UTCEG score recompute
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-29 06:14 UTCEG score recompute
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-27 17:40 UTCEG score recompute
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-25 04:30 UTCEG score recompute
- 2026-09-23 22:36 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-23 00:12 UTCEG score recompute
- 2026-09-22 01:25 UTCEG score recompute
- 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-20 20:47 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-20 02:06 UTCEG score recompute
- 2026-09-19 03:21 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-18 03:05 UTCEG score recompute
- 2026-09-17 01:05 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-15 16:15 UTCEG score recompute
- 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-14 00:20 UTCEG score recompute
- 2026-09-13 01:56 UTCEG score recompute
- 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-11 16:19 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-10 17:54 UTCEG score recompute
- 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-09 08:13 UTCEG score recompute
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-07 18:14 UTCEG score recompute
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-06 16:50 UTCEG score recompute
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
- 2026-09-05 18:25 UTCEG score recompute
- 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-09-05 03:46 UTCEG score recompute
- 2026-09-04 09:30 UTCEG score recompute
- 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-09-03 06:46 UTCEG score recompute
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-09-01 20:29 UTCEG score recompute
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 24th percentile
Related CVEs(same product + same CWE)
Same product
10 shownnpm:electron
- CVE-2026-102676EG 9.8CRITICAL
- CVE-2026-34775EG 9.8CRITICAL
- CVE-2017-16151EG 9.8CRITICAL
- CVE-2022-4135EG 9.6 KEVEPSS p98CRITICAL
- CVE-2026-54257EG 9.3CRITICAL
- CVE-2023-5217NVD 8.8EG 9.0 KEVEPSS p99CRITICAL
- CVE-2023-4863NVD 8.8EG 9.0 KEVEPSS p100CRITICAL
- CVE-2018-1000006NVD 8.8EG 9.0EPSS p100CRITICAL
- CVE-2026-102677EG 8.8HIGH
- CVE-2026-34765EG 8.8HIGH
Frequently asked(5)
What is CVE-2026-70608?
When was the CVE record for CVE-2026-70608 published?
Is CVE-2026-70608 actively exploited?
What is the CVSS score of CVE-2026-70608?
How do I remediate CVE-2026-70608?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-70608
Is Your Infrastructure Affected by CVE-2026-70608?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.