CVE-2026-76292

Missing Authorization through REST API Endpoints in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, and Splunk Secure Gateway versions below 3.10.12, 3.9.26, and 3.8.73, a low-privileged user that does not hold the "admin" Splunk role or the "sc_admin" Splunk Secure Gateway role could read mobile alert notification data for other users through Splunk Secure Gateway App Key Value Store (KV Store) Representational State Transfer (REST) API endpoints. The vulnerability is possible because the affected Splunk Secure Gateway App Key Value Store collections do not enforce user-level authorization for read requests. For more information see About the app key value store (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/administer-the-app-key-value-store/about-the-app-key-value-store) and About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76295

SPL Injection through the REST API in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, and Splunk Secure Gateway versions below 3.10.12, 3.9.26, and 3.8.73, a user who does not hold the "admin" or "power" Splunk roles could view dashboard and report listings beyond the requested filter scope while remaining within objects that the user can access. The vulnerability is possible because Splunk Secure Gateway does not neutralize special characters in values before it creates filters for dashboard and report requests. For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76347

Server-Side Request Forgery (SSRF) through the Report Notifications REST API in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could use Server-Side Request Forgery (SSRF) in report notifications to send system-authenticated requests to internal Splunk services, which could allow for changes to Search Head Cluster state and a denial of service. The vulnerability is possible because Splunk Secure Gateway does not validate report notification path values before it sends internal requests.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76265

Improper Access Control through REST API Endpoints in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, and Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72, a user who does not hold the "admin" or "power" Splunk roles could access privileged Splunk Secure Gateway functionality. With this access, the user could cause Splunk Secure Gateway to sign attacker-controlled payloads. The vulnerability is possible because multiple Splunk Secure Gateway Representational State Transfer (REST) API endpoints do not enforce authorization requirements before processing requests.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76272

Missing Access Control through the REST API in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, a user who does not hold the "admin" or "power" Splunk roles could cause Splunk Secure Gateway to sign attacker-controlled payloads. The vulnerability is possible because Splunk Secure Gateway does not verify that the user is authorized to request a signature. Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72 are also affected. For more information see Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities) in the Splunk documentation.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76280

Incorrect Permission Assignment for App Key Value Store Collections in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, and Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72, an authenticated user who does not hold the "admin" or "sc_admin" Splunk roles could modify Splunk Secure Gateway alert and mobile-device recipient data in App Key Value Store (KV Store) collections that later alert and subscription workflows use. The vulnerability is possible because the affected collections allow unrestricted write access instead of limiting writes to authorized Splunk Secure Gateway workflows. For more information see About the app key value store (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/administer-the-app-key-value-store/about-the-app-key-value-store), KV store endpoint descriptions (https://help.splunk.com/en/splunk-enterprise/leverage-rest-apis/rest-api-reference/10.4/kv-store-endpoints/kv-store-endpoint-descriptions), and About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation.

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76261

Insecure Default Access Control List through the REST API in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could read Spacebridge asymmetric private keys, which are secrets that compromise affected Spacebridge private-key material stored in the app collection, through the Splunk Secure Gateway App Key Value Store Representational State Transfer (REST) API. The vulnerability is possible on instances upgraded from older Splunk Secure Gateway deployments when the private-key migration remains incomplete, leaving key material in a collection with an insecure default access control list.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76327

SPL Injection through Splunk Web in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, an unauthenticated user could trick a user who holds the "admin" or "sc_admin" Splunk roles into opening a crafted Splunk Web Uniform Resource Locator (URL). The resulting dashboard searches could run arbitrary Search Processing Language (SPL) commands with the permissions available to the affected user. The commands could expose all relevant data available to that user and affect search results or lookup data. The vulnerability is possible because Splunk Secure Gateway dashboards do not correctly neutralize caller-supplied values before using them in dashboard searches. The vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The unauthenticated user should not be able to exploit the vulnerability at will.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76258

Use of Hard-coded Cryptographic Key through Companion App Registration in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.10, 3.9.24, and 3.8.71, a user who does not hold the "admin" or "power" Splunk roles could register an arbitrary companion app and cause Splunk Secure Gateway to forward mobile user requests, including tokens that compromise all relevant data available to the affected mobile user, to an attacker-controlled Uniform Resource Locator (URL). The vulnerability is possible because a hard-coded cryptographic key in the Splunk Secure Gateway companion app registration handler allows for arbitrary callback URL registration without restriction. For more information see Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities) in the Splunk documentation.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76257

Missing Authorization through REST API Endpoints in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.10, 3.9.24, and 3.8.71, a user who holds a Splunk role with permissions to list storage passwords but does not hold Splunk Secure Gateway administration privileges could access Mobile Device Management signing secrets that compromise all affected mobile-device enrollment trust through Splunk Secure Gateway. The vulnerability is possible because Splunk Secure Gateway Representational State Transfer (REST) API endpoints for deployment bundle, Security Assertion Markup Language setup, and companion app workflows do not require Splunk Secure Gateway administration privileges before processing requests.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76256

Information Exposure through REST API Endpoints in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could read sensitive Security Assertion Markup Language setup and instance settings information through Splunk Secure Gateway Representational State Transfer (REST) API endpoints. The vulnerability is possible because the affected Security Assertion Markup Language setup and instance settings REST API endpoints do not enforce authorization requirements before returning configuration information.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-76351

Server-Side Request Forgery (SSRF) through the Report Notification REST API in Splunk Secure Gateway

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could use crafted report notification data to cause Splunk Secure Gateway to send a request to the Splunk Enterprise Representational State Transfer (REST) API using a system-level session token and modify the Splunk platform configuration. The user could then obtain a session token without a password and use it to access all relevant data and affect system integrity. The vulnerability is possible because Splunk Secure Gateway does not validate decoded report notification identifiers before using them to construct requests to the Splunk Enterprise REST API.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2026-20251

Remote Code Execution through Deserialization of Untrusted Data in Splunk Secure Gateway

In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, Splunk Cloud Platform versions below 10.3.2512.12, 10.2.2510.14, 10.1.2507.22, and 9.3.2411.132, and Splunk Secure Gateway versions below 3.10.6, 3.9.20, and 3.8.67, a low-privileged user that does not hold the 'admin' or 'power' Splunk roles could perform a Remote Code Execution (RCE) through the Splunk Secure Gateway app.<br><br>The Remote Code Execution is possible because of unsafe deserialization of App Key Value Store (KV Store) data through the ‘jsonpickle’ Python library, which reconstructs arbitrary Python objects from specially crafted JavaScript Object Notation (JSON) without adequate validation.

CVSS 3.1 · 8.8 High EPSS 30.6% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Cloud Platform Splunk Enterprise and 1 more

CVE-2024-53243

Information Disclosure in Mobile Alert Responses in Splunk Secure Gateway

In Splunk Enterprise versions below 9.3.2, 9.2.4, and 9.1.7 and versions below 3.2.462, 3.7.18, and 3.8.5 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could see alert search query responses using Splunk Secure Gateway App Key Value Store (KVstore) collections endpoints due to improper access control.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Enterprise Splunk Secure Gateway

CVE-2024-53247

Remote Code Execution through Deserialization of Untrusted Data in Splunk Secure Gateway app

In Splunk Enterprise versions below 9.3.2, 9.2.4, and 9.1.7, and versions below 3.4.261 and 3.7.13 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could perform a Remote Code Execution (RCE).

CVSS 3.1 · 8.8 High EPSS 1.1% KEV · Not listed

Vendors

Splunk

Products

Splunk Enterprise Splunk Secure Gateway

CVE-2025-20231

Sensitive Information Disclosure in Splunk Secure Gateway App

In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could run a search using the permissions of a higher-privileged user that could lead to disclosure of sensitive information.<br><br>The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The authenticated low-privileged user should not be able to exploit the vulnerability at will.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Enterprise Splunk Secure Gateway

CVE-2025-20383

Improper access control through push notifications for reports and alerts in Splunk Secure Gateway app

In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and below 3.9.10, 3.8.58, and 3.7.28 of Splunk Secure Gateway app in Splunk Cloud Platform, a low-privileged user that does not hold the "admin" or "power" Splunk roles and subscribes to mobile push notifications could receive notifications that disclose the title and description of the report or alert even if they do not have access to view the report or alert.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Cloud Platform Splunk Enterprise and 1 more

CVE-2025-20389

Improper Input Validation in "label" column field in Splunk Secure Gateway App

In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and versions below 3.9.10, 3.8.58 and 3.7.28 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious payload through the `label` column field after adding a new device in the Splunk Secure Gateway app. This could potentially lead to a client-side denial of service (DoS).

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Cloud Platform Splunk Enterprise and 1 more

CVE-2025-20230

Missing Access Control and Incorrect Ownership of Data in App Key Value Store (KVStore) collections in the Splunk Secure Gateway App

In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could edit and delete other user data in App Key Value Store (KVStore) collections that the Splunk Secure Gateway app created. This is due to missing access control and incorrect ownership of the data in those KVStore collections.<br><br>In the affected versions, the `nobody` user owned the data in the KVStore collections. This meant that there was no specific owner assigned to the data in those collections.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Cloud Platform Splunk Enterprise and 1 more

CVE-2024-45735

Improper Access Control for low-privileged user in Splunk Secure Gateway App

In Splunk Enterprise versions below 9.2.3 and 9.1.6, and Splunk Secure Gateway versions on Splunk Cloud Platform versions below 3.4.259, 3.6.17, and 3.7.0, a low-privileged user that does not hold the "admin" or "power" Splunk roles can see App Key Value Store (KV Store) deployment configuration and public/private keys in the Splunk Secure Gateway App.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Splunk

Products

Splunk Splunk Cloud Platform Splunk Enterprise and 1 more