Vulnerability · Published Jun 4, 2026 · Assigned by BLSOPS
CVE-2026-10880Unauthenticated SQL Injection in Osnexus Quantastor
Critical 9.8
In plain English
A critical-severity SQL injection in QuantaStor from Osnexus. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 61.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Osnexus | QuantaStor | 5.9 – before 6.6.1 |
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H