CVE-2026-55721 SQL Injection in StoneFly Storage Concentrator
Unauthenticated attackers can exploit SQL injection in login and debug scripts to extract sensitive database information, including credentials and keys.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55721?
CVE-2026-55721 is a critical SQL injection vulnerability in StoneFly Storage Concentrator, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Storage Concentrator (SC & SCVM) is vulnerable to SQL injection through cookie values processed by the login.pl and debug.pl scripts. The cookie value is incorporated directly into database queries without adequate sanitization, allowing an unauthenticated remote attacker to manipulate those queries and extract sensitive information from the underlying database, including session tokens, password hashes, and stored secret keys.
Weakness: CWE-89
Which versions are affected by CVE-2026-55721?
How do I fix CVE-2026-55721?
No fix has been published for CVE-2026-55721 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-2026-55721 being exploited?
There is no known exploitation of CVE-2026-55721 in the wild and no public exploit code.
Sources
Also known as GHSA-864f-9wr6-7qwp.