{"id":"CVE-2026-111823","published":"2026-10-17T02:17:18.470","lastModified":"2026-10-17T02:17:18.470","description":"Mage OSS through 0.9.80 before 76c4f46 can proceed with session creation upon encountering an unknown OAuth provider.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-390"],"vendors":[],"products":[],"references":[{"url":"https://github.com/mage-ai/mage-ai/pull/6204","tags":[]},{"url":"https://github.com/mage-ai/mage-ai/pull/6204/changes/76c4f467f3654041d8899b1c4447a985710d26c0","tags":[]},{"url":"https://github.com/mage-ai/mage-ai/pull/6205","tags":[]},{"url":"https://thecoregroup.net/category/the-core-group/","tags":[]}],"exploitRefs":[{"url":"https://github.com/mage-ai/mage-ai/pull/6204","tags":[]},{"url":"https://github.com/mage-ai/mage-ai/pull/6204/changes/76c4f467f3654041d8899b1c4447a985710d26c0","tags":[]},{"url":"https://github.com/mage-ai/mage-ai/pull/6205","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows attackers to create unauthorized sessions by bypassing OAuth provider validation, potentially leading to full system compromise. This is critical because it enables unauthenticated access to protected resources.","exploitability":"Exploitation is straightforward requiring only a valid OAuth flow initiation with an unknown provider, allowing immediate session creation without proper authentication checks.","blast_radius":"The impact could be severe across all affected Mage OSS installations, potentially enabling attackers to gain full administrative access to systems using the vulnerable version.","remediation":"Upgrade to version 76c4f46 or later immediately to patch this session creation bypass vulnerability.","detection":"Monitor for unusual authentication events in application logs where session creation occurs without proper OAuth provider validation, particularly when OAuth flow parameters are present but unknown provider identifiers are used.","tags":["auth-bypass","oauth","session-management","web"],"model":"garnet-coder","analyzedAt":"2026-10-17T08:47:35.005Z"}}