HomeCVE Intelligence › CVE-2026-59940
CVSS 9.8 CRITICAL Security Vulnerability

CVE-2026-59940: seroval: `seroval.fromJSON()` Promise resolver type confusion invokes attacker-controlled…

Summary A type confusion issue in seroval.fromJSON() allowed attacker-controlled JSON input to cause Promise control nodes to operate on values from the general deserialization reference table without first verifying th…

9.8CVSS Score
CRITICALSeverity
NOCISA KEV
Security VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-59940
VendorUnknown Vendor
Affected ProductUnknown Product
Vulnerability TypeSecurity Vulnerability
CVSS Score9.8 (CRITICAL)
Actively Exploited❌ No known exploitation
Patch StatusPending Vendor Disclosure
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via sentinel_apex)

🔬 Technical Analysis

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Summary

A type confusion issue in seroval.fromJSON() allowed attacker-controlled JSON input to cause Promise control nodes to operate on values from the general deserialization reference table without first verifying that those values were genuine internal promise resolver ... [Full analysis available on Pro]

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