CVE-2026-51876
DeepTutor 1.4.0 contains an authorization bypass vulnerability in the book confirmation flow. An unauthenticated or unauthorized caller can reuse a publicly exposed book_id to submit a confirm-proposal request for an existing book, causing unauthorized overwrites of persisted metadata and spine content.
- Published Oct 1, 2026
- CVSS 9.1 critical
- 0.2% chance of exploitation in the next 30 days (EPSS)