--- title: "CVE-2026-111823: Mage OSS - Authentication Bypass" description: "Mage OSS <= 0.9.80 before 76c4f46 contains an authentication bypass caused by improper handling of unknown OAuth providers during session creation, letting attackers bypass authentication, exploit requires encountering an unknown OAuth provider." url: https://panop.io/threat-heartbeat/CVE-2026-111823/ --- # CVE-2026-111823 Mage OSS - Authentication Bypass Mage OSS <= 0.9.80 before 76c4f46 contains an authentication bypass caused by improper handling of unknown OAuth providers during session creation, letting attackers bypass authentication, exploit requires encountering an unknown OAuth provider. CVSS base score 9.8 /10 Critical CISA KEV Not listed Public exploit Proof of concept available Authentication Not required EPSS 0.37% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-111823) ## Details Type Broken Authentication Impact Broken Authentication CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Published 17 October 2026 Updated 19 October 2026 Weakness [CWE-390](https://cwe.mitre.org/data/definitions/390.html) ## Vendor fix Update to the version after 76c4f46 or latest available version. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-111823](https://nvd.nist.gov/vuln/detail/CVE-2026-111823) - [https://thecoregroup.net/category/the-core-group/](https://thecoregroup.net/category/the-core-group/) - [https://github.com/mage-ai/mage-ai/pull/6204](https://github.com/mage-ai/mage-ai/pull/6204) - [https://github.com/mage-ai/mage-ai/pull/6204/changes/76c4f467f3654041d8899b1c4447a985710d26c0](https://github.com/mage-ai/mage-ai/pull/6204/changes/76c4f467f3654041d8899b1c4447a985710d26c0) - [https://github.com/mage-ai/mage-ai/pull/6205](https://github.com/mage-ai/mage-ai/pull/6205) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)