CVE-2026-70603
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| electron | electron | < 39.8.6 | affected |
| electron | electron | >= 40.0.0-alpha.1, < 40.9.0 | affected |
| electron | electron | >= 41.0.0-alpha.1, < 41.1.1 | affected |
| electron | electron | >= 42.0.0-alpha.1, < 42.0.0-beta.1 | affected |
Weaknesses
- CWE-20: CWE-20: Improper Input Validation
- CWE-158: CWE-158: Improper Neutralization of Null Byte or NUL Character
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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