CVE-2026-109353 LibreNMS before 26.9.0 SQL Injection via notification_id in notifications.inc.php
Unprivileged users can inject SQL to read password hashes via the notification_id parameter in LibreNMS.
- 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-2026-109353?
CVE-2026-109353 is a high-severity SQL injection vulnerability in librenms, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
LibreNMS before 26.9.0 contains an SQL injection vulnerability that allows unprivileged users to inject SQL by supplying an array-valued notification_id parameter to notifications.inc.php. Attackers can perform cross-table reads of users.password hashes, with results persisted in notifications_attribs and readable through the interface.
Weakness: CWE-89
Which versions are affected by CVE-2026-109353?
How do I fix CVE-2026-109353?
No fix has been published for CVE-2026-109353 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-2026-109353 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109353 exists.
Sources
Also known as GHSA-2pw7-8mmj-gcw5, GHSA-g9jw-2r94-hwjc.