CVE-2026-40839 Authenticated SQLi in getComponentScalings function
An attacker can exploit SQL injection in the getComponentScalings function to read sensitive data from the database.
- 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-2026-40839?
CVE-2026-40839 is a high-severity SQL injection vulnerability in Helmholz mbCONNECT24, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getComponentScalings function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.
Weakness: CWE-89
Which versions are affected by CVE-2026-40839?
How do I fix CVE-2026-40839?
No fix has been published for CVE-2026-40839 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-40839 being exploited?
There is no known exploitation of CVE-2026-40839 in the wild and no public exploit code.
Sources
Also known as GHSA-hmxw-2r33-qg6w.