CVE-2026-56221 Cap-go - SQL Injection in Cloudflare Analytics Engine Queries via cloudflare.ts
Authenticated users can inject SQL into Cap-go analytics queries to access other users' data via unsanitized API parameters.
- 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-2026-56221?
CVE-2026-56221 is a high-severity SQL injection vulnerability in Cap-go capgo, published on 22 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Cap-go before 12.128.2 contains multiple SQL injection vulnerabilities in cloudflare.ts where user-controlled values from API request bodies are interpolated directly into SQL query strings without sanitization or parameterization. Authenticated users with read-level API key permissions can inject arbitrary SQL through deviceIds, search, version_name, cursor, and actions parameters to access analytics data belonging to other users or applications.
Weakness: CWE-89
Which versions are affected by CVE-2026-56221?
How do I fix CVE-2026-56221?
No fix has been published for CVE-2026-56221 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-2026-56221 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56221 exists.
Sources
Also known as GHSA-f83x-p28r-pf74.