How severe is CVE-2026-78545?

CVE-2026-78545 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-78545 being actively exploited?

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

What products are affected by CVE-2026-78545?

CVE-2026-78545 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-78545?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-78545 published?

CVE-2026-78545 was published on 2026-09-08 and last updated on 2026-09-29.

CVE-2026-78545

CVE-2026-78545 is a medium-severity vulnerability in Okta Access Gateway with a CVSS 3.x base score of 6.6. 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-94.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Okta Access Gateway
Published: 2026-09-08
Last modified: 2026-09-29

Description

The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives.

Frequently asked questions

What is CVE-2026-78545?: The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives.
How severe is CVE-2026-78545?: CVE-2026-78545 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-78545 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-78545?: CVE-2026-78545 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-78545?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-78545 published?: CVE-2026-78545 was published on 2026-09-08 and last updated on 2026-09-29.

References

https://trust.okta.com/security-advisories/improper-input-sanitization-in-okta-access-gateway-application-label-configuration-cve-2026-78545/

Affected products (1)

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

More vulnerabilities in Okta Access Gateway

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CVE-2026-78623 — High (CVSS 7.7): The Okta Access Gateway does not sanitize SAML assertion values before interpolating them into database queries in the…
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