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TI-2026-54620 Aliases CVE-2026-78552GHSA-5hj5-f578-54jw

Validation Bypass in Okta Access Gateway Custom Directives

Priority LOW 27CWE-693Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-693.

Summary

The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configuration field. The field is interpolated directly into the nginx server block without inspection, resulting in execution of injected directives.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00386 32nd percentileScored 2026-11-07
Fix Fixed Okta Access Gateway (Okta): 2026.9.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OktaOkta Access Gatewaybefore 2026.9.12026.9.1Patch availableCNA
  • Okta Access Gateway VendorOkta Affected before 2026.9.1 Fixed in 2026.9.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*before 2026.9.1VulnerableOkta
  • cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:* Versions before 2026.9.1 Vulnerable ·Okta

Remediation

  • Fix · CNA Okta Access Gateway (Okta) Fixed in 2026.9.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Okta Access Gateway 2026.9.1

    11 records Highest priority Priority MEDIUM 1 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2026-54670 Improper Handling of SAML Assertion Attributes in Okta Access Gateway Advanced Mode DatastoresPriority MEDIUM 43
    • TI-2026-54673 Improper Input Sanitization in Okta Access Gateway Protected RulesPriority LOW 37
    • TI-2026-54618 Improper Input Handling in Okta Access Gateway Management Console Exception HandlerPriority LOW 34
    Show all 11 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-78552
  2. 2026-10-03 Alias added: GHSA-5hj5-f578-54jw

References

Advisory 1

  • TI-2021-09349 A command injection vulnerability in the cookieDomain and relayDomain parameters of Okta… CVSS 3.1MEDIUM 6.7
  • TI-2026-54670 Improper Handling of SAML Assertion Attributes in Okta Access Gateway Advanced Mode Datastores CVSS 3.1CRITICAL 9.9
  • TI-2026-54673 Improper Input Sanitization in Okta Access Gateway Protected Rules CVSS 3.1HIGH 8.1
  • TI-2026-54618 Improper Input Handling in Okta Access Gateway Management Console Exception Handler CVSS 3.1HIGH 7.2
  • TI-2026-54615 Improper Input Sanitization in Okta Access Gateway Application Label Configuration CVSS 3.1HIGH 7.2
  • TI-2026-54631 Improper Input Sanitization in Okta Access Gateway LDAP Datastore Filter Interpolation CVSS 3.1MEDIUM 6.8
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences