CVE-2026-10880: Osnexus Quantastor

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

OSNexus QuantaStor SDS Manager is vulnerable to SQL injection in the login endpoint. The username field is not properly sanitized before being incorporated into a SQL query, allowing an unauthenticated remote attacker to bypass authentication and log in as an administrator without supplying a valid password.

Affected products

• Osnexus Quantastor: from 5.9, before 6.6.1 (fixed in 6.6.1)

Published 2026-06-04. Last modified 2026-07-22.