Description
KEDA is a Kubernetes-based Event Driven Autoscaling component. Prior to 2.20.0, pkg/scalers/postgresql_scaler.go constructs libpq-style connection strings from tenant-controlled host, port, userName, dbName, sslmode, and password values, while escapePostgreConnectionParameter() only quotes values containing a literal space. Tabs, newlines, carriage returns, form feeds, vertical tabs, quotes, and backslashes can therefore create additional key-value tokens when pgx parses the string. An attacker able to create or modify a TriggerAuthentication or ScaledObject can inject host or sslmode parameters, redirect the database connection to an attacker-controlled server, expose credentials, or disable intended TLS protection. This issue is fixed in version 2.20.0.
References6
- github.com/kedacore/keda/commit/703de9dec86cb25b6ecfa4948880a90…
- github.com/kedacore/keda/issues/7784
- github.com/kedacore/keda/pull/7787
- github.com/kedacore/keda/releases/tag/v2.20.0
- github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q
- github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q
Metrics
- CVSS 3.1
-
5.9
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N - EPSS — exploit probability
- 0% percentile: 33 · as of 9 November 2026
- CWE
- CWE-74CWE-89
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.