VULNRABLE / Vulnerability / CVE-2026-61534
CVE-2026-61534
CRITICAL WATCH yayson GHSA
Exploit verdict: CVSS 9.5 · no EPSS data
CVSS Score
9.5
Severity
CRITICAL
EPSS
—
Source
GHSA
Summary
yayson: Prototype pollution in Store/LegacyStore deserialization
What this means
CVE-2026-61534 is a critical-severity vulnerability affecting yayson, rated CVSS 9.5. Published September 12, 2026.
View full advisory at GHSA →