CVE-2026-4404 is a critical-severity vulnerability. AttackerView checks Harbor sites for it with a live exploit check.
Detects Harbor container registry instances running version 2.15.0 or earlier where the default admin password (Harbor12345) has not been changed. Attackers can authenticate with these well-known credentials to gain full admin access — pulling private images, pushing malicious ones, and compromising container supply chains.
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