GITHUB-ACTIONS · JULY 2026 · EARLY WARNING

Gitea Webhook Issue: Potential Ongoing Data Exfiltration

EARLY WARNING · UNCONFIRMED. This page describes a developing threat that 0Day surfaced from early signals and has not yet independently confirmed. Details may change. Always verify against the primary sources before acting.
GHSA-66M4-5JJR-2RG5Severity: HIGH

An issue has been reported where Gitea webhooks created by collaborators may continue to operate even after their access has been revoked. This could potentially lead to ongoing, real-time exfiltration of private repository content.

What happened

According to early reports, webhooks set up by collaborators in Gitea may not be properly disabled or deleted when the collaborator's access is revoked. This appears to allow the webhooks to continue firing, potentially enabling unauthorized access and exfiltration of private repository data.

Professional software engineers using Gitea are advised to review and update their webhook management policies to ensure that webhooks are disabled or deleted when a collaborator's access is revoked. This issue is currently under investigation, and further details should be obtained from the primary sources listed.

How 0Day mitigates this

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Read how this differs from waiting on a scanner to catch a known advisory, or see the exact, read-only access 0Day needs to do this for an organization.

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