{"id":"CVE-2026-78330","aliases":["EUVD-2026-77438","GHSA-w7wp-qc67-vgc8"],"status":"published","title":"Apache Syncope: Privilege escalation for admin user via JWT authentication","description":"Incorrect privilege assignment vulnerability in Apache Syncope.\n\nWhen the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT.\n\n\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00642,"percentile":0.51125,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-266"],"published":"2026-09-14T12:24:56Z","modified":"2026-09-14T21:32:45Z","products":[{"vendor":"apache software foundation","product":"apache syncope"}],"references":[{"url":"https://lists.apache.org/thread/vkqmmpwcdson285vtmzpbj9psw35hyo9","tags":["vendor-advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/09/14/19"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78330"},{"url":"https://github.com/advisories/GHSA-w7wp-qc67-vgc8"}],"sources":{"cve":[{"id":"CVE-2026-78330","title":"Apache Syncope: Privilege escalation for admin user via JWT authentication","description":"Incorrect privilege assignment vulnerability in Apache Syncope.\n\nWhen the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT.\n\n\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.","status":"published","published":"2026-09-14T12:24:56.656Z","modified":"2026-09-14T19:20:54.424Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-266"],"updated_at":"2026-11-02T13:34:59.78118Z"}],"euvd":[{"id":"EUVD-2026-77438","description":"Incorrect privilege assignment vulnerability in Apache Syncope.\n\nWhen the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT.\n\n\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.","status":"published","published":"2026-09-14T12:24:56Z","modified":"2026-09-14T19:20:54Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T17:28:19.730872Z"}],"ghsa":[{"id":"GHSA-w7wp-qc67-vgc8","title":"Incorrect privilege assignment vulnerability in Apache Syncope.\n\nWhen the configured JWKS...","description":"Incorrect privilege assignment vulnerability in Apache Syncope.\n\nWhen the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT.\n\n\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.","status":"published","published":"2026-09-14T15:32:43Z","modified":"2026-09-14T21:32:45Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-266"],"updated_at":"2026-11-02T15:11:52.890064Z"}],"nvd":[{"id":"CVE-2026-78330","description":"Incorrect privilege assignment vulnerability in Apache Syncope.\n\nWhen the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT.\n\n\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.","status":"published","published":"2026-09-14T13:18:47.123Z","modified":"2026-09-14T20:58:48.43Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-266"],"updated_at":"2026-11-02T14:12:46.980627Z"}]}}