CVE-2025-12743 SQL Injection in Looker Project Generation Endpoint Allows Access to Internal MySQL Database
Attackers with developer permissions can extract data from Looker's internal MySQL database via SQL injection in the project generation endpoint.
- 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-2025-12743?
CVE-2025-12743 is a medium-severity SQL injection vulnerability in Google Cloud Looker, published on 19 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Looker endpoint for generating new projects from database connections allows users to specify "looker" as a connection name, which is a reserved internal name for Looker's internal MySQL database. The schemas parameter is vulnerable to SQL injection, enabling attackers to manipulate SELECT queries that are constructed and executed against the internal MySQL database. This vulnerability allows users with developer permissions to extract data from Looker's internal MySQL database.
Looker-hosted and Self-hosted were found to be vulnerable. This issue has already been mitigated for Looker-hosted instances. No user action is required for these.
Self-hosted instances must be upgraded as soon as possible. This vulnerability has been patched in all supported versions of Self-hosted. The versions below have all been updated to protect against this vulnerability. You can download these versions at the Looker download page https://download.looker.com/ : * 24.12.106 * 24.18.198+ * 25.0.75 * 25.6.63+ * 25.8.45+ * 25.10.33+ * 25.12.1+ * 25.14+
Weakness: CWE-89
Which versions are affected by CVE-2025-12743?
How do I fix CVE-2025-12743?
No fix has been published for CVE-2025-12743 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-2025-12743 being exploited?
There is no known exploitation of CVE-2025-12743 in the wild and no public exploit code.
Sources
Also known as GHSA-8fvv-8rcf-99j8.