CVE-2026-18397

Published Oct 1, 2026 CWE-130 CWE-252 CWE-347 CWE-457

Description

This vulnerability enables unauthenticated remote code execution (RCE) on a victim's machine by exploiting a combination of cryptographic weaknesses and memory management issues in the SConnect native host component. The attack leverages an unrestricted messaging interface between an attacker-controlled web page and the native host, allowing malicious input to bypass security checks.

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Weakness Type (CWE)

CWE-130 CWE-130
CWE-252 CWE-252
CWE-347 CWE-347
CWE-457 CWE-457

References

Frequently Asked Questions

What is CVE-2026-18397? +
This vulnerability enables unauthenticated remote code execution (RCE) on a victim's machine by exploiting a combination of cryptographic weaknesses and memory management issues in the SConnect native host component. The attack leverages an unrestricted messaging interface between an attacker-controlled web page and the native host, allowing malicious input to bypass security checks.
How do I check if I'm vulnerable to CVE-2026-18397? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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