GHSA-5c9j-mhmv-5xgx: electron (CVE-2026-70603)

Electron: shell.openPath path validation bypass via embedded null byte

CVSS 6.0 MediumEPSS 0.0013 · 2nd percentile

Published by the GitHub Advisory Database at 5 Aug 2026, 15:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
electron	npm	>=42.0.0-alpha.1, <42.0.0-beta.1 \|\| >=41.0.0-alpha.1, <41.1.1 \|\| >=40.0.0-alpha.1, <40.9.0 \|\| <39.8.6	42.0.0-beta.1, 41.1.1, 40.9.0, 39.8.6

Identifiers

GHSA-5c9j-mhmv-5xgx · CVE-2026-70603

Weakness (CWE)

CWE-20 · CWE-158

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.0	Medium	3.1	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0013, the 2nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

5 Aug 2026, 15:56 UTC Confirmed by the CVE List
5 Aug 2026, 16:17 UTC Confirmed by NVD

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.