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GoHarbor Issues Urgent Patch for Harbor Flaw Allowing Full Registry Compromise

Gbhackers •Divya • March 25, 2026

A critical security flaw in GoHarbor’s Harbor container registry exposes organizations to severe supply chain attacks. Tracked as CVE-2026-4404, this vulnerability stems from hardcoded default credentials that remain active unless manually altered by an administrator. Harbor functions as an open-source, OCI-compliant registry project designed to store, sign, and manage container images. Because it plays a […]

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Critical Hardcoded Credentials Flaw in GoHarbor's Harbor Exposes Registries to Attacks GoHarbor's Harbor container registry has a critical vulnerability, CVE-2026-4404, due to hardcoded default credentials that can be exploited by attackers. The default admin password, 'Harbor12345', does not require change upon initial deployment, allowing unauthorized access if left unchanged. This flaw can lead to full administrative control over the Harbor registry, enabling attackers to overwrite or inject malicious container images, which poses a significant risk for supply-chain attacks. Organizations using Harbor are at risk of having sensitive images exfiltrated or losing system integrity through destructive actions like deleting repositories. A patch has been issued to address this vulnerability, and operators are urged to change default credentials immediately. The vulnerability was reported by a user and has been acknowledged in an urgent advisory. The potential impact includes compromised CI/CD pipelines and Kubernetes environments. The vulnerability was published on March 23, 2026. 2 sources 73

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GoHarbor Issues Urgent Patch for Harbor Flaw Allowing Full Registry Compromise

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