CVE-2026-78626 Improper Input Sanitization in Okta Access Gateway Protected Rules

High 8.1 Published 8 Sep 2026 Updated 10 Sep 2026

Attackers can bypass authorization checks in Okta Access Gateway if administrators configure specific Protected Rule policies, allowing unauthorized access to resources.

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-2026-78626?

CVE-2026-78626 is a high-severity authentication bypass vulnerability in Okta Access Gateway, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Okta Access Gateway improperly handles input sanitization and regular expression evaluation within its Protected Rule authorization check, resulting in an authorization bypass when an administrator has explicitly configured a Protected Rule policy on one or more application resources.

Weakness: CWE-863

Which versions are affected by CVE-2026-78626?

It affects 1 product.

Products include Okta Access Gateway.

How do I fix CVE-2026-78626?

No fix has been published for CVE-2026-78626 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-78626 being exploited?

There is no known exploitation of CVE-2026-78626 in the wild and no public exploit code.

Sources

Also known as GHSA-4vpp-8gg6-2rvh.