v4.19.4 Bug Fixes
This release includes bug fixes for the async execution worker context not having the instance ID set, corrects the ID order in the invite code notification handler, and improves handling of finalized unique-constraint backfill and exclusive owner deletes.
4.19.4 (2026-10-01)
Bug Fixes
Source: original entry ↗
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Performance improvements for user queries
Improved performance of user listing queries by indexing users by instance and organization, and stopped expanding login names for every ListUsers row to reduce database load.
v4.19.2 – Security fixes for SAML, session cookies, and impersonation
This release fixes three security vulnerabilities including SAML identity-provider confusion leading to account takeover, unsigned Login V2 session cookie vulnerability, and unauthorized administrator impersonation. All 4.x deployments should upgrade and configure the new ZITADEL_SESSION_COOKIE_SECRET for Login V2.
Fixed batch unique constraint owner backfill in setup step 79
Corrected a bug in setup step 79 related to batch unique constraint owner backfill to ensure database consistency during initialization.