CVE-2026-70466 Missing authorization in FortiOS

What is CVE-2026-70466?

CVE-2026-70466 is a medium-severity missing authorization vulnerability in Fortinet Fortiweb, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A incomplete list of disallowed inputs vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow attacker to improper access control via <insert attack vector here>

Weakness: CWE-184

Which versions are affected by CVE-2026-70466?

It affects 1 product.

Products include Fortinet Fortiweb.

How do I fix CVE-2026-70466?

No fix has been published for CVE-2026-70466 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-70466 being exploited?

There is no known exploitation of CVE-2026-70466 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortiweb

• CVE-2025-25257 Fortinet FortiWeb SQL Injection Exploited Critical 9.6
• CVE-2025-64446 Fortinet FortiWeb Path Traversal Exploited Critical 9.4
• CVE-2025-58034 Fortinet FortiWeb OS Command Injection Exploited Medium 6.7
• CVE-2020-29015 SQL injection in Fortinet FortiWeb Critical 9.8
• CVE-2020-29016 Memory corruption in Fortinet FortiWeb Critical 9.8

All Fortinet Fortiweb vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hf6p-246f-w422.