{"id":"CVE-2026-54445","aliases":["EUVD-2026-37824","GHSA-fgmc-2hqj-86v4","PYSEC-2026-3400"],"status":"published","title":"Vantage6: Set admin user and password from environment or configuration","description":"vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the `root` user after it has been used to create other users.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00292,"percentile":0.22067,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1393","CWE-204"],"published":"2026-06-05T16:45:22Z","modified":"2026-10-28T02:30:48Z","fixes":[{"ecosystem":"PyPI","package":"vantage6","fixed_in":["5.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"vantage6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.2.3"},{"fixed":"5.0.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"vantage6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.0"}]}],"versions":["0.0.0","0.0.0b0","0.0.0b1","0.0.0b3","1.0.0","1.0.0a1","1.0.0a2","1.0.0b10","1.0.0b11","1.0.0b12","1.0.0b13","1.0.0b14","1.0.0b2","1.0.0b3","1.0.0b4","1.0.0b5","1.0.0b6","1.0.0b7","1.0.0b8","1.0.0b9","1.1.0","1.1.0rc1","1.1.0rc2","1.2.0","1.2.1","1.2.2","1.2.3","1.2.3.post2","2.0.0","2.0.0.post1","2.0.0a1","2.0.0a2","2.0.0a3","2.0.1rc1","2.0.1rc2","2.1.0","2.1.0rc1","2.1.1","2.2.0","2.2.0b1","2.2.0b2","2.2.0b3","2.2.0b4","2.2.1","2.2.10","2.2.11","2.2.12","2.2.2","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","2.3.0","2.3.0rc1","2.3.0rc2","2.3.0rc3","2.3.0rc4","2.3.0rc5","2.3.1","2.3.2","2.3.2rc1","2.3.3","2.3.4","2.3.5","2.3.5b1","3.0.0","3.0.0b1","3.0.0b2","3.0.0b3","3.0.0b4","3.0.0b5","3.0.0b6","3.0.0b7","3.0.0b8","3.0.0rc1","3.0.1","3.0.2","3.0.3","3.0.4","3.1.0","3.1.0rc1","3.1.0rc5","3.1.0rc6","3.1.0rc7","3.1.0rc8","3.1.0rc9","3.1.1rc1","3.1.1rc2","3.10.0","3.10.0rc1","3.10.1","3.10.3","3.10.4","3.11.0","3.11.0rc1","3.11.0rc2","3.11.0rc3","3.11.1","3.2.0","3.2.0rc1","3.2.0rc2","3.2.0rc3","3.2.0rc4","3.2.0rc5","3.3.0","3.3.0a0","3.3.0rc1","3.3.0rc2","3.3.0rc3","3.3.0rc4","3.3.1","3.3.2","3.3.3","3.3.4","3.3.5","3.3.6","3.3.7","3.3.7a2","3.3.7a3","3.3.8a1","3.3.8a2","3.3.8a4","3.3.8a5","3.3.8a6","3.3.8a7","3.3.8a8","3.4.0","3.4.0a1","3.4.0a2","3.4.0a3","3.4.0a6","3.4.1","3.4.1a0","3.4.1a1","3.4.1a2","3.4.1a3","3.4.2","3.4.2a0","3.4.3","3.5.0","3.5.0rc1","3.5.0rc2","3.5.0rc3","3.5.1","3.5.2","3.6.0","3.6.1","3.6.1rc1","3.6.1rc2","3.6.1rc3","3.7.0","3.7.0rc1","3.7.0rc2","3.7.1","3.7.2","3.7.3","3.8.0","3.8.0rc3","3.8.1","3.8.2","3.8.2rc1","3.8.3","3.8.4","3.8.5","3.8.6","3.8.7","3.8.7rc1","3.8.8","3.8.8rc1","3.8.8rc2","3.8.8rc3","3.9.0","3.9.0rc2","3.9.0rc4","4.0.0","4.0.0a10","4.0.0a2","4.0.0a3","4.0.0a4","4.0.0a5","4.0.0a6","4.0.0a7","4.0.0a8","4.0.0a9","4.0.1","4.0.1rc2","4.0.2","4.0.3","4.1.0","4.1.0b0","4.1.0b1","4.1.0rc0","4.1.1","4.1.2","4.1.3","4.10.0","4.10.0rc1","4.10.0rc2","4.10.0rc3","4.10.0rc4","4.10.1","4.10.1rc1","4.10.2","4.11.0","4.11.0rc2","4.11.0rc3","4.11.0rc4","4.12.0","4.12.0rc2","4.12.1","4.12.2","4.12.2rc1","4.12.3rc1","4.13.0","4.13.0rc2","4.13.0rc3","4.13.0rc4","4.13.1","4.13.2","4.13.2rc1","4.13.3","4.13.3rc1","4.13.3rc2","4.13.4","4.13.4rc1","4.13.5","4.13.6","4.13.6rc3","4.13.7","4.13.7rc1","4.14.0","4.14.0rc1","4.15.0","4.15.0rc1","4.15.0rc2","4.15.0rc3","4.15.0rc4","4.15.0rc5","4.15.1","4.15.1rc1","4.2.0","4.2.0rc1","4.2.0rc2","4.2.1","4.2.2","4.2.3","4.3.0","4.3.0b3","4.3.0b4","4.3.0b5","4.3.0b6","4.3.0rc1","4.3.0rc2","4.3.1","4.3.2","4.3.2rc2","4.3.4","4.3.4rc3","4.4.0","4.4.0rc3","4.4.1","4.5.0","4.5.0rc3","4.5.1","4.5.2","4.5.3","4.5.4","4.5.5","4.6.0","4.6.0rc3","4.6.0rc4","4.6.0rc5","4.6.0rc6","4.6.0rc7","4.6.1","4.7.0","4.7.0rc1","4.7.0rc2","4.7.1","4.7.1rc1","4.8.0","4.8.0rc1","4.8.0rc2","4.8.0rc3","4.8.1","4.8.2","4.9.0","4.9.0rc1","4.9.1","5.0.0a0","5.0.0a14","5.0.0a15","5.0.0a16","5.0.0a17","5.0.0a18","5.0.0a19","5.0.0a20","5.0.0a21","5.0.0a22","5.0.0a26","5.0.0a29","5.0.0a33","5.0.0a34","5.0.0a35","5.0.0a36","5.0.0a37","5.0.0a38","5.0.0a40","5.0.0a41","5.0.0a42","5.0.0a43","5.0.0a44","5.0.0a47","5.0.0a7","5.0.0a9","5.0.0b1","5.0.0b2","5.0.0b4","5.0.0rc1","5.0.0rc10","5.0.0rc2","5.0.0rc4","5.0.0rc5","5.0.0rc6","5.0.0rc7","5.0.0rc8","5.0.0rc9","5.0.0rc91"]},{"source":"osv","ecosystem":"PyPI","package":"vantage6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.0"}]}],"versions":["0.0.0","0.0.0b0","0.0.0b1","0.0.0b3","1.0.0","1.0.0a1","1.0.0a2","1.0.0b10","1.0.0b11","1.0.0b12","1.0.0b13","1.0.0b14","1.0.0b2","1.0.0b3","1.0.0b4","1.0.0b5","1.0.0b6","1.0.0b7","1.0.0b8","1.0.0b9","1.1.0","1.1.0rc1","1.1.0rc2","1.2.0","1.2.1","1.2.2","1.2.3","1.2.3.post2","2.0.0","2.0.0.post1","2.0.0a1","2.0.0a2","2.0.0a3","2.0.1rc1","2.0.1rc2","2.1.0","2.1.0rc1","2.1.1","2.2.0","2.2.0b1","2.2.0b2","2.2.0b3","2.2.0b4","2.2.1","2.2.10","2.2.11","2.2.12","2.2.2","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","2.3.0","2.3.0rc1","2.3.0rc2","2.3.0rc3","2.3.0rc4","2.3.0rc5","2.3.1","2.3.2","2.3.2rc1","2.3.3","2.3.4","2.3.5","2.3.5b1","3.0.0","3.0.0b1","3.0.0b2","3.0.0b3","3.0.0b4","3.0.0b5","3.0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Set admin user and password from environment or configuration","description":"vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the `root` user after it has been used to create other users.","status":"published","published":"2026-06-17T22:14:51.461Z","modified":"2026-06-18T15:49:54.097Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-204","CWE-1393"],"updated_at":"2026-11-02T13:38:09.774038Z"}],"euvd":[{"id":"EUVD-2026-37824","description":"vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the `root` user after it has been used to create other users.","status":"published","published":"2026-06-17T22:14:51Z","modified":"2026-06-18T15:49:54Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:36.276608Z"}],"ghsa":[{"id":"GHSA-fgmc-2hqj-86v4","title":"Vantage6: Set admin user and password from environment or configuration","description":"### Impact\nVantage6 currently provides an initial user with username `root` and password `root`. This is not ideal for the following reasons:\n- Attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights\n- The initial password is very weak and it is possible that administrators forget to reset it.\n\n### Patches\nNo\n\n### Workarounds\nIt is possible to delete the `root` user after it has been used to create other users\n\n### References\nWe could consider doing this like [mongodb](https://hub.docker.com/_/mongo)\n\n### Additional info\n\nLuis uses the following patch to mitigate it:\n```diff\ndiff --git a/vantage6-server/vantage6/server/__init__.py b/vantage6-server/vantage6/server/__init__.py\nindex ea362c1e..c6dcbbd9 100644\n--- a/vantage6-server/vantage6/server/__init__.py\n+++ b/vantage6-server/vantage6/server/__init__.py\n@@ -618,18 +618,30 @@ class ServerApp:\n             # TODO use constant instead of 'Root' literal\n             root = db.Role.get_by_name(\"Root\")\n \n-            log.warn(\n-                f\"Creating root user: \"\n-                f\"username={SUPER_USER_INFO['username']}, \"\n-                f\"password={SUPER_USER_INFO['password']}\"\n-            )\n+            # Temporary patch\n+            # read initial root password from file (docker secret) if provided\n+            # TODO: This is a workaround so we don't have an insecure vserver\n+            #       at the start. Ideally, we would provide an already hashed\n+            #       password. But as hashing is implemented via @validates on\n+            #       the field 'password', there isn't a nice way around this.\n+            if os.environ.get(\"V6_INITIAL_ROOT_PASSWORD_FILE\"):\n+                with open(\n+                    os.environ.get(\"V6_INITIAL_ROOT_PASSWORD_FILE\")\n+                ) as password_file:\n+                    initial_root_password = password_file.read().strip()\n+                log.info(\n+                    f\"Creating root user with password provided via V6_INITIAL_ROOT_PASSWORD_FILE\"\n+                )\n+            else:\n+                initial_root_password = SUPER_USER_INFO[\"password\"]\n+                log.warn(f\"Creating root user with default credentials!\")\n \n             user = db.User(\n                 username=SUPER_USER_INFO[\"username\"],\n                 roles=[root],\n                 organization=org,\n                 email=\"root@domain.ext\",\n-                password=SUPER_USER_INFO[\"password\"],\n+                password=initial_root_password,\n                 failed_login_attempts=0,\n                 last_login_attempt=None,\n             )\n```","status":"published","published":"2026-06-05T16:45:22Z","modified":"2026-07-09T21:06:52Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-204","CWE-1393"],"updated_at":"2026-11-02T14:40:41.501474Z"}],"nvd":[{"id":"CVE-2026-54445","description":"vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the `root` user after it has been used to create other users.","status":"published","published":"2026-06-17T23:17:05.03Z","modified":"2026-06-23T15:44:39.343Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-204","CWE-1393"],"updated_at":"2026-11-02T14:12:24.544761Z"}],"osv":[{"id":"CVE-2026-54445","title":"Vantage6: Set admin user and password from environment or configuration","description":"vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the `root` user after it has been used to create other users.","status":"published","published":"2026-06-17T22:14:51.461Z","modified":"2026-10-28T02:30:48.28758842Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-1393","CWE-204"],"updated_at":"2026-11-02T15:45:10.818486Z"},{"id":"GHSA-fgmc-2hqj-86v4","title":"Vantage6: Set admin user and password from environment or configuration","description":"### Impact\nVantage6 currently provides an initial user with username `root` and password `root`. This is not ideal for the following reasons:\n- Attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights\n- The initial password is very weak and it is possible that administrators forget to reset it.\n\n### Patches\nNo\n\n### Workarounds\nIt is possible to delete the `root` user after it has been used to create other users\n\n### References\nWe could consider doing this like [mongodb](https://hub.docker.com/_/mongo)\n\n### Additional info\n\nLuis uses the following patch to mitigate it:\n```diff\ndiff --git a/vantage6-server/vantage6/server/__init__.py b/vantage6-server/vantage6/server/__init__.py\nindex ea362c1e..c6dcbbd9 100644\n--- a/vantage6-server/vantage6/server/__init__.py\n+++ b/vantage6-server/vantage6/server/__init__.py\n@@ -618,18 +618,30 @@ class ServerApp:\n             # TODO use constant instead of 'Root' literal\n             root = db.Role.get_by_name(\"Root\")\n \n-            log.warn(\n-                f\"Creating root user: \"\n-                f\"username={SUPER_USER_INFO['username']}, \"\n-                f\"password={SUPER_USER_INFO['password']}\"\n-            )\n+            # Temporary patch\n+            # read initial root password from file (docker secret) if provided\n+            # TODO: This is a workaround so we don't have an insecure vserver\n+            #       at the start. Ideally, we would provide an already hashed\n+            #       password. But as hashing is implemented via @validates on\n+            #       the field 'password', there isn't a nice way around this.\n+            if os.environ.get(\"V6_INITIAL_ROOT_PASSWORD_FILE\"):\n+                with open(\n+                    os.environ.get(\"V6_INITIAL_ROOT_PASSWORD_FILE\")\n+                ) as password_file:\n+                    initial_root_password = password_file.read().strip()\n+                log.info(\n+                    f\"Creating root user with password provided via V6_INITIAL_ROOT_PASSWORD_FILE\"\n+                )\n+            else:\n+                initial_root_password = SUPER_USER_INFO[\"password\"]\n+                log.warn(f\"Creating root user with default credentials!\")\n \n             user = db.User(\n                 username=SUPER_USER_INFO[\"username\"],\n                 roles=[root],\n                 organization=org,\n                 email=\"root@domain.ext\",\n-                password=SUPER_USER_INFO[\"password\"],\n+                password=initial_root_password,\n                 failed_login_attempts=0,\n                 last_login_attempt=None,\n             )\n```","status":"published","published":"2026-06-05T16:45:22Z","modified":"2026-07-13T16:42:58.865847455Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-1393","CWE-204"],"updated_at":"2026-11-02T15:46:46.39441Z"},{"id":"PYSEC-2026-3400","title":"Vantage6: Set admin user and password from environment or configuration","description":"### Impact\nVantage6 currently provides an initial user with username `root` and password `root`. This is not ideal for the following reasons:\n- Attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights\n- The initial password is very weak and it is possible that administrators forget to reset it.\n\n### Patches\nNo\n\n### Workarounds\nIt is possible to delete the `root` user after it has been used to create other users\n\n### References\nWe could consider doing this like [mongodb](https://hub.docker.com/_/mongo)\n\n### Additional info\n\nLuis uses the following patch to mitigate it:\n```diff\ndiff --git a/vantage6-server/vantage6/server/__init__.py b/vantage6-server/vantage6/server/__init__.py\nindex ea362c1e..c6dcbbd9 100644\n--- a/vantage6-server/vantage6/server/__init__.py\n+++ b/vantage6-server/vantage6/server/__init__.py\n@@ -618,18 +618,30 @@ class ServerApp:\n             # TODO use constant instead of 'Root' literal\n             root = db.Role.get_by_name(\"Root\")\n \n-            log.warn(\n-                f\"Creating root user: \"\n-                f\"username={SUPER_USER_INFO['username']}, \"\n-                f\"password={SUPER_USER_INFO['password']}\"\n-            )\n+            # Temporary patch\n+            # read initial root password from file (docker secret) if provided\n+            # TODO: This is a workaround so we don't have an insecure vserver\n+            #       at the start. Ideally, we would provide an already hashed\n+            #       password. But as hashing is implemented via @validates on\n+            #       the field 'password', there isn't a nice way around this.\n+            if os.environ.get(\"V6_INITIAL_ROOT_PASSWORD_FILE\"):\n+                with open(\n+                    os.environ.get(\"V6_INITIAL_ROOT_PASSWORD_FILE\")\n+                ) as password_file:\n+                    initial_root_password = password_file.read().strip()\n+                log.info(\n+                    f\"Creating root user with password provided via V6_INITIAL_ROOT_PASSWORD_FILE\"\n+                )\n+            else:\n+                initial_root_password = SUPER_USER_INFO[\"password\"]\n+                log.warn(f\"Creating root user with default credentials!\")\n \n             user = db.User(\n                 username=SUPER_USER_INFO[\"username\"],\n                 roles=[root],\n                 organization=org,\n                 email=\"root@domain.ext\",\n-                password=SUPER_USER_INFO[\"password\"],\n+                password=initial_root_password,\n                 failed_login_attempts=0,\n                 last_login_attempt=None,\n             )\n```","status":"published","published":"2026-07-13T15:46:15.015504Z","modified":"2026-07-13T16:33:32.067229507Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T15:52:56.847083Z"}]}}