Mage OSS Ships an OAuth Bypass That Creates Sessions from Unrecognized Providers — the Tenth Trust-Through-Defaults Incident in Twenty-One Days
Mage OSS, a data pipeline orchestration tool, contains a critical authentication bypass vulnerability tracked as CVE-2026-111823. The flaw, identified in GHSA-93gm-r5p2-wxq7, carries a CVSS score of 9.8. It affects all versions of the platform through 0.9.80. The vulnerability stems from a failure in the OAuth callback handler, which incorrectly manages error states during the authentication…