CVE-2026-70603Medium· 6.0▾ SunlitElectron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1, shell.openPath() did not reject paths containing embedded null bytes. Apps that p…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 33 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.1%
Last analysed / modified upstream
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1, shell.openPath() did not reject paths containing embedded null bytes. Apps that perform string-only validation of file paths, for example checking the file extension, before passing them to shell.openPath() could be bypassed, allowing an attacker-controlled path to open a different file than the one that passed validation. Apps are only affected if they pass paths derived from untrusted input to shell.openPath() and rely on string-based validation without a filesystem check. This issue is fixed in versions 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
electron >= 42.0.0-alpha.1, < 42.0.0-beta.1electron >= 41.0.0-alpha.1, < 41.1.1electron >= 40.0.0-alpha.1, < 40.9.0electron < 39.8.6Patched in:
electron 42.0.0-beta.1electron 41.1.1electron 40.9.0electron 39.8.6Connected by shared product, vendor, weakness, or advisory.
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