CVE-2026-51876 Missing authorization in n/a
Unauthenticated attackers can overwrite book metadata and content by reusing exposed book IDs in the confirmation flow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-51876?
CVE-2026-51876 is a critical missing authorization vulnerability in n/a, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-285
Which versions are affected by CVE-2026-51876?
How do I fix CVE-2026-51876?
No fix has been published for CVE-2026-51876 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-51876 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51876 exists.
Sources
Also known as GHSA-h434-cpxm-mqxr.