CVE-2026-108677 JeecgBoot through 3.9.5 Missing Authorization via /sys/api/getUserByName
Low-privileged users can retrieve encrypted admin passwords via an unprotected API endpoint, enabling offline cracking and account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108677?
CVE-2026-108677 is a high-severity missing authorization vulnerability in JeecgBoot, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
JeecgBoot through 3.9.5 contains a missing authorization vulnerability in GET /sys/api/getUserByName that allows low-privileged authenticated users to retrieve any user's stored password value. Attackers can decrypt the AES-CBC protected response using the hard-coded key exposed by /sys/getEncryptedString to obtain administrators' password ciphertexts for offline guessing.
Weakness: CWE-862
Which versions are affected by CVE-2026-108677?
How do I fix CVE-2026-108677?
No fix has been published for CVE-2026-108677 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-2026-108677 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108677 exists.
Sources
Also known as GHSA-ghh4-x4m2-g9rc.