CVE-2026-105040 EnergizeLab Eilik User-ID Mass Assignment Account Takeover
A registered user can take over another account by manipulating the user ID in update requests due to mass assignment in the NestJS auth service.
- 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-2026-105040?
CVE-2026-105040 is a high-severity authentication bypass vulnerability in EnergizeLab NestJS auth service, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The EnergizeLab Eilik NestJS auth service accepts a user-controlled user ID in account update requests (mass assignment). A registered user can set another account's identifier and take over that account.
Weakness: CWE-639
Which versions are affected by CVE-2026-105040?
How do I fix CVE-2026-105040?
No fix has been published for CVE-2026-105040 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-105040 being exploited?
There is no known exploitation of CVE-2026-105040 in the wild and no public exploit code.
Sources
Also known as GHSA-49rf-m9q2-2xm2.