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CVE-2026-78552— Validation Bypass in Okta Access Gateway Custom Directives

Quick assessment

Affected

Okta Okta Access Gateway

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Okta Access Gateway是Okta公司的一款网络设备产品。 Okta Access Gateway 2026.9.1之前版本存在处理逻辑错误漏洞，该漏洞源于未对应用级自定义配置字段应用Lua指令限制，该字段未经检查直接插入nginx服务器块，可能导致执行注入的指令。

CVSS 6.0 · Medium EPSS 0.39% · P32 Updated Sep 11, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

Vendor	Product	Version Range	Status
Okta	Okta Access Gateway	`< 2026.9.1`	affected

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I. Basic Information for CVE-2026-78552

Vulnerability Information

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Vulnerability Title

Validation Bypass in Okta Access Gateway Custom Directives

Source: CVE Program / CVE List V5

Vulnerability Description

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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

保护机制失效

Source: CVE Program / CVE List V5

Vulnerability Title

Okta Access Gateway 处理逻辑错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Okta	Okta Access Gateway	0 ~ 2026.9.1	-

II. Public POCs for CVE-2026-78552

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-78552

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Vendor Advisories for CVE-2026-78552 (1)

🔗 Validation Bypass in Okta Access Gateway Custom Directives CVE-2026-78552 - Sep 8, 2026

https://www.cve.org/CVERecord?id=CVE-2026-78552

Same Patch Batch · Okta · 2026-09-08 · 17 CVEs total

CVE-2026-78626	8.1 HIGH	Improper Input Sanitization in Okta Access Gateway Protected Rules
CVE-2026-78623	7.7 HIGH	Improper Handling of SAML Assertion Attributes in Okta Access Gateway Advanced Mode Datast
CVE-2026-78574	7.5 HIGH	Improper Assembly Resolution in Okta Hyperdrive Integration Plugin Registry Handling
CVE-2026-78627	7.3 HIGH	Improper Credential Protection in Okta Hyperdrive Integration Installer Logging
CVE-2026-78579	6.8 MEDIUM	Improper Input Sanitization in Okta Access Gateway LDAP Datastore Filter Interpolation
CVE-2026-78625	6.7 MEDIUM	Insufficient Validation of Dashboard Application Labels in Okta Access Gateway Dashboard S
CVE-2026-78630	6.7 MEDIUM	Improper Input Neutralization in Okta Access Gateway SNMP Configuration Processing
CVE-2026-78550	6.6 MEDIUM	Improper Input Handling in Okta Access Gateway Management Console Exception Handler
CVE-2026-78545	6.6 MEDIUM	Improper Input Sanitization in Okta Access Gateway Application Label Configuration
CVE-2026-78622	6.0 MEDIUM	Improper Link Resolution in Okta Verify for Windows Uninstaller Data Removal
CVE-2026-78620	5.9 MEDIUM	Improper Path Validation in Okta Access Gateway Kerberos Configuration Handling
CVE-2026-78629	5.6 MEDIUM	Improper Authentication Verification in the Okta Hyperdrive Agent MFA Response Handling
CVE-2026-78631	5.3 MEDIUM	Improper Restriction of Sensitive Information in Okta Hyperdrive Agent Logging
CVE-2026-78635	5.0 MEDIUM	Improper Input Validation in the Okta Privileged Access SSH Client URL Handler Argument
CVE-2026-78624	4.9 MEDIUM	Improper Path Validation in Okta Access Gateway Backup and Restore Functionality
CVE-2026-78560	4.8 MEDIUM	Improper Authentication Validation in Okta Access Gateway Pass-Through Authentication Sour

IV. Related Vulnerabilities

Same product: Okta Access Gateway

Same vendor: Okta

Same weakness: CWE-693