What’s Vulnerable › Vulnerabilities

CVE-2026-51876

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-01 · updated 2026-10-06
• Weakness: CWE-285

Description

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.

References

• https://gist.github.com/Ro1ME/c5685936179edcbf942f3fdd745d1473
• https://github.com/HKUDS/DeepTutor/issues/514
• https://github.com/HKUDS/DeepTutor/issues/514

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