How severe is CVE-2026-78626?

CVE-2026-78626 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-78626 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-78626?

CVE-2026-78626 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-78626?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-78626 published?

CVE-2026-78626 was published on 2026-09-08 and last updated on 2026-09-22.

CVE-2026-78626

CVE-2026-78626 is a high-severity vulnerability in Okta Access Gateway with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Okta Access Gateway
Published: 2026-09-08
Last modified: 2026-09-22

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.

Frequently asked questions

What is CVE-2026-78626?: 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.
How severe is CVE-2026-78626?: CVE-2026-78626 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-78626 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-78626?: CVE-2026-78626 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-78626?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-78626 published?: CVE-2026-78626 was published on 2026-09-08 and last updated on 2026-09-22.

References

https://trust.okta.com/security-advisories/improper-input-sanitization-in-okta-access-gateway-protected-rules-cve-2026-78626

Affected products (1)

cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*

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