GHSA-PHG3-3G28-WQ9V Hatchet - Unauthenticated OAuth state CSRF / login-CSRF via empty-state collision in ValidateOAuthState

Summary Hatchet version v0.86.26 and below is vulnerable to OAuth state CSRF login CSRF / account fixation. The vulnerable code clears the session oauthstate value to the empty string "" after a successful OAuth callback rather than removing the key, and the subsequent state-equality check then...

EUVD-2026-83978

Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.91.1, ValidateOAuthState clears the oauthstate session value to an empty string after a successful OAuth callback and later accepts an empty state parameter as equal, allowing an...

CVE-2026-61687 hatchet - Unauthenticated OAuth state CSRF / login-CSRF via empty-state collision in ValidateOAuthState

Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.91.1, ValidateOAuthState clears the oauthstate session value to an empty string after a successful OAuth callback and later accepts an empty state parameter as equal, allowing an...