VULNRABLE / Vulnerability / CVE-2026-55761

CVE-2026-55761

HIGH LOW github.com/portainer/portainer GHSA

Exploit verdict: No active-exploit signal

CVSS Score

Severity

HIGH

EPSS

Source

GHSA

Summary

Portainer has Unauthenticated Restore Endpoint that Allows Admin Takeover on Uninitialized Instances

What this means

CVE-2026-55761 is a high-severity vulnerability affecting github.com/portainer/portainer, rated CVSS 8. The EPSS model estimates a 0% probability of exploitation in the next 30 days. Published August 29, 2026.

View full advisory at GHSA →