CVE-2026-2549 zhanghuanhao LibrarySystem 图书馆管理系统 BookController.java access control
Remote attackers can bypass access controls in the BookController to read or modify library data without proper authorization.
- 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-2026-2549?
CVE-2026-2549 is a medium-severity missing authorization vulnerability in zhanghuanhao LibrarySystem 图书馆管理系统, published on 16 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been found in zhanghuanhao LibrarySystem 图书馆管理系统 up to 1.1.1. This impacts an unknown function of the file BookController.java. The manipulation leads to improper access controls. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-2549?
How do I fix CVE-2026-2549?
No fix has been published for CVE-2026-2549 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-2026-2549 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2549 exists.
Sources
Also known as GHSA-59w9-4rgj-869h.