VULNRABLE / Vulnerability / CVE-2026-56812

CVE-2026-56812

MEDIUM LOW phoenix GHSA

Exploit verdict: No active-exploit signal

CVSS Score

5.5

Severity

MEDIUM

EPSS

Source

GHSA

Summary

Phoenix: Presence keys colliding with `Object.prototype` members break existence checks

What this means

CVE-2026-56812 is a medium-severity vulnerability affecting phoenix, rated CVSS 5.5. The EPSS model estimates a 1% probability of exploitation in the next 30 days. Published September 4, 2026.

View full advisory at GHSA →