CVE-2026-109186 jshERP through 3.6 Mass Assignment via PUT /user/update
Authenticated users can exploit mass assignment in jshERP to overwrite protected fields, enabling tenant switching or 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-2026-109186?
CVE-2026-109186 is a high-severity vulnerability in jishenghua jshERP, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
jshERP through 3.6 contains a mass assignment vulnerability in the UserController update handler that allows authenticated users to overwrite protected fields including tenant_id and password. Attackers can send a crafted PUT /user/update body to switch into another tenant on next login or overwrite other users' password hashes for account takeover.
Weakness: CWE-915
Which versions are affected by CVE-2026-109186?
How do I fix CVE-2026-109186?
No fix has been published for CVE-2026-109186 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109186 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109186 exists.
Sources
Also known as GHSA-q6mx-rrwp-p348.