Publish GHSA-25rw-g6ff-fmg8

Author: advisory-database[bot]

advisories/github-reviewed/2026/03/GHSA-25rw-g6ff-fmg8/GHSA-25rw-g6ff-fmg8.json

@@ -0,0 +1,86 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-25rw-g6ff-fmg8",
+  "modified": "2026-03-04T22:51:16Z",
+  "published": "2026-03-04T22:51:16Z",
+  "aliases": [
+    "CVE-2026-29193"
+  ],
+  "summary": "ZITADEL: Login V2 UI Policy Bypass Allows Unauthorized Self-Registration and Authentication",
+  "details": "### Summary\n\nA vulnerability in Zitadel's login V2 UI allowed users to bypass login behavior and security policies and self-register new accounts or sign in using password even if corresponding options were disabled in their organizaton.\n\n### Impact\n\nZitadel enables administrators to configure their organization’s login behavior and security policies. As part of this functionality, they can disable user self-registration, enforce passwordless logins only, and more.\n\nDue to improper enforcement an attacker could send direct HTTP requests to the login UI and create accounts in organizations that have disabled user self-registration, and gain unauthorized access to the system.\nThe same attack vector could be used to authenticate for example using username and password even when this login method was disabled.\n\n### Affected Versions\n\nSystems running one of the following versions are affected:\n- **4.x**: `4.0.0` through `4.12.0` (including RC versions)\n\n### Patches\n\nThe vulnerability has been addressed in the latest releases. The patch resolves the issue by enforcing the policies on the logiin UI server.\n\n4.x: Upgrade to >=[4.12.1](https://github.com/zitadel/zitadel/releases/tag/v4.12.1)\n\n### Workarounds\n\nThe recommended solution is to upgrade to a patched version.\n\n### Questions\n\nIf there are any questions or comments about this advisory, please send an email to [security@zitadel.com](mailto:security@zitadel.com)\n\n### Credits \n\nZITADEL extends thanks once again to Amit Laish from GE Vernova for finding and reporting the vulnerability.",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/zitadel/zitadel/v2"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "4.0.0"
+            },
+            {
+              "fixed": "4.12.1"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 4.12.0"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/zitadel/zitadel"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "4.0.0"
+            },
+            {
+              "fixed": "4.12.1"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 4.12.0"
+      }
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-25rw-g6ff-fmg8"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/zitadel/zitadel"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/zitadel/zitadel/releases/tag/v4.12.1"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-287"
+    ],
+    "severity": "HIGH",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-03-04T22:51:16Z",
+    "nvd_published_at": null
+  }
+}