ZITADEL is an open-source identity infrastructure tool. ZITADEL provides users the ability to list all user sessions of the current user agent (browser). Starting in version 2.53.0 and prior to versions 2.53.8, 2.54.5, and 2.55.1, due to a missing check, user sessions without that information (e.g. when created though the session service) were incorrectly listed exposing potentially other user's sessions. Versions 2.55.1, 2.54.5, and 2.53.8 contain a fix for the issue. There is no workaround since a patch is already available.
https://github.com/zitadel/zitadel/security/advisories/GHSA-cvw9-c57h-3397
https://github.com/zitadel/zitadel/releases/tag/v2.55.1
https://github.com/zitadel/zitadel/releases/tag/v2.54.5
https://github.com/zitadel/zitadel/releases/tag/v2.53.8
https://github.com/zitadel/zitadel/pull/8231
https://github.com/zitadel/zitadel/issues/8213
https://github.com/zitadel/zitadel/commit/d04f208486a418a45b884b9ca8433e5ad9790d73
https://github.com/zitadel/zitadel/commit/c2093ce01507ca8fc811609ff5d391693360c3da
https://github.com/zitadel/zitadel/commit/4a262e42abac2208b02fefaf68ba1a5121649f04
https://discord.com/channels/927474939156643850/1254096852937347153