CVE-2026-40127 Authorization Bypass Through User-Controlled Key in OutSystems Lifetime
Authenticated users can bypass authorization to read change logs and application names of other users via the ApplicationID parameter.
- 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-2026-40127?
CVE-2026-40127 is a medium-severity missing authorization vulnerability in OutSystems Lifetime, published on 25 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OutSystems Lifetime is vulnerable to Authorization Bypass Through User-Controlled Key vulnerability in ApplicationID parameter. Any authenticated user, can read the Change Log containing actions performed by other users as well as application name of any application.
This issue was fixed in OutSystems Lifetime version 11.28.2.3955
Weakness: CWE-639
Which versions are affected by CVE-2026-40127?
How do I fix CVE-2026-40127?
No fix has been published for CVE-2026-40127 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-2026-40127 being exploited?
There is no known exploitation of CVE-2026-40127 in the wild and no public exploit code.
Sources
Also known as GHSA-jrw3-h5q4-rwxc.