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Okta Access Gateway CVE-2026-115547

| EUVDEUVD-2026-108569 CRITICAL
Code Injection (CWE-94)
2026-10-23 Okta GHSA-f8gp-f8q2-388v
9.1
CVSS 3.1 · Vendor: Okta
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain OAG admin credentials
  2. Delivery
    Authenticate to Admin Console
  3. Exploit
    Submit crafted configuration value
  4. Execution
    Trigger command injection (CWE-94)
  5. Impact
    Execute commands as OAG service account

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Code injection prevention, sandbox exec
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an authenticated administrator with access to the Okta Access Gateway Admin Console (PR:H), who must be able to enter 'specially formatted configuration values' into a configuration input that lacks proper validation; the malformed value is then processed and results in OS command execution as the OAG service account. The principal limiting factor is the administrator privilege requirement - this is not exploitable by unauthenticated or low-privileged users and depends on reaching the Admin Console. The precise configuration field and trigger mechanism are not described in the available sources beyond 'input validation issue' and 'specially formatted configuration values'; affected versions and any non-default conditions are not specified in the supplied data.

Impact

This is a genuine high-priority issue, but its real-world risk is gated by a significant precondition rather than by raw severity. The CVSS 3.1 vector (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H, base 9.1) reflects that an attacker who already holds administrator privileges on the Okta Access Gateway Admin Console can trivially (AC:L, no user interaction) achieve a scope-changing full compromise - code execution as the OAG service account with high confidentiality, integrity and availability impact. The high score is driven almost entirely by that impact and the scope change, not by ease of initial access: PR:H means the attacker must first be an authenticated administrator. The vuln.today decision label is 'act_now', consistent with the vendor-confirmed RCE and CWE-94 code-injection classification. However, key exploitation signals are absent from the supplied data: there is no CISA KEV listing, no EPSS probability, and no confirmed public exploit. The only reference is Okta's own security advisory. These signals should be weighed together: the flaw is serious and vendor-confirmed, but it is a post-authentication privilege-escalation-to-RCE issue requiring an existing admin foothold, so it is better characterized as a defense-in-depth / insider-and-post-compromise concern than as a mass-exploitable remote entry point. The 'act_now' label plus confirmed RCE justify prompt patching despite the lack of KEV/EPSS data.

Exploit ScenarioDerived

An attacker who has obtained Okta Access Gateway administrator credentials (through phishing, credential reuse, or a malicious/compromised insider) logs into the OAG Admin Console and enters specially formatted values into a configuration field that is not properly validated. The malformed input is processed in a way that injects and runs operating-system commands in the context of the OAG service account, giving the attacker command execution on the gateway host. No public exploit identified at time of analysis; the attack requires existing administrator access (PR:H).

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available

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AnalysisAIv1 – Oct 23, 2026

Authenticated administrators of Okta Access Gateway can execute system commands as the OAG service account by submitting specially formatted values to Admin Console configuration inputs that are processed without adequate validation. The flaw is rated CVSS 9.1 with a PR:H vector, so exploitation requires high-privileged Admin Console access rather than an unauthenticated or low-privileged foothold; exact affected version ranges are not enumerated in the supplied data. No public exploit was identified at time of analysis, but the act_now priority and scope change to the host OS make prompt review of the Okta advisory important.

RemediationAI

Review Okta's advisory at http://trust.okta.com/security-advisories/command-execution-via-admin-console-input-in-okta-access-gateway-cve-2026-115547 for the vendor-released fixed version and upgrade OAG accordingly; the supplied data does not include an exact fix version. Until a fixed build is applied, limit Admin Console access to trusted administrators and restrict network reachability to the console, recognizing that this reduces exposure but does not correct the input-validation flaw. Because commands run as the OAG service account, reducing that account's privileges can limit post-exploitation impact, with the trade-off that the gateway may need those permissions to operate. Monitor configuration changes and administrative sessions for unexpected values or command activity.

Affected VersionsENISA

Okta Access Gateway 0 <2026.10.2

Affected Packages

euvd okta_access_gateway fix: 2026.10.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Okta Access Gateway is an on-premises access gateway whose Admin Console manages configuration. CWE-94 (code injection) applies: a configuration input accepts specially formatted values, and the backend processes them in a way that lets an authenticated administrator trigger OS command execution under the OAG service account. The CVSS scope change (S:C) reflects that the impact moves from the Admin Console into the underlying host/OS context. The CPE cpe:2.3:a:okta:okta_access_gateway:*:*:*:*:*:*:*:* uses a wildcard version, so all OAG versions are potentially in scope, but the supplied data does not identify the precise vulnerable field, the exact triggering syntax, or any non-default conditions.

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Severity by source

Vendor (Okta) PRIMARY 9.1 CRITICAL
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
vuln.today AI 9.1 CRITICAL

Admin Console is network-reachable (AV:N) and the attack is straightforward (AC:L) but needs administrator rights (PR:H); breaking out to OS command execution as the service account is a scope change (S:C) with full C/I/A impact.

3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from Vendor (Okta).

CVSS VectorVendor: Okta

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Patch available
Oct 23, 2026 - 04:30 EUVD
CVE Published
Oct 23, 2026 - 03:06 cve.org
CRITICAL 9.1

DescriptionCVE.org

An input validation issue in the Okta Access Gateway (OAG) Admin Console allows the processing of specially formatted configuration values. An authenticated administrator can leverage this to execute system commands within the context of the OAG service account.

Executive ViewAI

Why It Matters

Okta Access Gateway administrators with high privileges can execute system commands as the OAG service account, potentially compromising the host OS. This vulnerability requires authenticated administrator access but poses a critical risk to organizations using Okta Access Gateway. Leadership should prioritize review and mitigation to prevent unauthorized system-level access.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting Admin Console access to highly trusted administrators, enforcing least privilege, monitoring for suspicious administrative actions, and isolating the OAG host from sensitive network segments.

Threat Intelligence Overview

Prevalence
Medium
specific on-prem Okta gateway appliance for legacy app integration, enterprise but not ubiquitous
Social Media
2
Sightings
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS N/A
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Related Vulnerabilities in Okta Access Gateway Auth and Code Injection

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