CVE-2026-20251

CVE-2026-20251 — Splunk Secure Gateway jsonpickle Deserialization RCE Researcher: Fady Oueslati · ReactiveZero Security Research Reference: 2026FO-SPLUNK-20251 CVSS: 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Status: Open — patch available Summary A low-privileged authenticated user can...

Vulnerabilities in Splunk Enterprise

Splunk has identified several vulnerabilities in Splunk Enterprise. These vulnerabilities apply to various versions of Splunk Enterprise and include insufficient authorization checks in REST API endpoints, allowing unauthorized users to access privileged functions or sensitive data. Some of these...

CVE-2026-76280

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 "scadmin" Splunk roles could modify Splunk Secure Gateway alert and mobile-device recipient data in...

CVE-2026-76272

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 i...

CVE-2026-76265

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...

CVE-2026-76280

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 are vulnerable to an incorrect permission assignment in App Key Value Store (KV Store) collections. An authenticated user without "admin" or "sc_admin" roles ...

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 "scadmin" Splunk roles could modify Splunk Secure Gateway alert and mobile-device recipient data in...

EUVD-2026-94632

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 "scadmin" Splunk roles could modify Splunk Secure Gateway alert and mobile-device recipient data in...

EUVD-2026-94624

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 i...

CVE-2026-76272

Splunk Enterprise and Splunk Secure Gateway are vulnerable to an access control flaw via the REST API. In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15 , users without "admin" or "power" roles can trigger the gateway to sign attacker-controlled payloads because the system f...

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 i...

EUVD-2026-94617

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...

CVE-2026-76265

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) are vulnerable to an improper access control flaw. The root cause is that multiple REST API endpoints in Splunk Secure Gateway fail to enforce authorizatio...

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...

PT-2026-107702

Name of the Vulnerable Software and Affected Versions Splunk Enterprise versions prior to 10.4.3 Splunk Enterprise versions prior to 10.2.7 Splunk Enterprise versions prior to 10.0.10 Splunk Enterprise versions prior to 9.4.15 Splunk Secure Gateway versions prior to 3.10.11 Splunk Secure Gateway...

CVE-2026-76265: Improper Access Control

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...

CVE-2026-76280: Incorrect Permission Assignment for Critical Resource

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 "scadmin" Splunk roles could modify Splunk Secure Gateway alert and mobile-device recipient data in...

CVE-2026-76272: Missing Authorization

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 i...

PT-2026-107694

Name of the Vulnerable Software and Affected Versions Splunk Enterprise versions prior to 10.4.3 Splunk Enterprise versions prior to 10.2.7 Splunk Enterprise versions prior to 10.0.10 Splunk Enterprise versions prior to 9.4.15 Splunk Secure Gateway versions prior to 3.10.11 Splunk Secure Gateway...

PT-2026-107687

Name of the Vulnerable Software and Affected Versions Splunk Enterprise versions prior to 10.4.3 Splunk Enterprise versions prior to 10.2.7 Splunk Enterprise versions prior to 10.0.10 Splunk Enterprise versions prior to 9.4.15 Splunk Secure Gateway versions prior to 3.10.11 Splunk Secure Gateway...