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CVE-2026-76345— Remote Code Execution (RCE) through the REST API in Splunk Enterprise

Quick assessment

Affected
Splunk Splunk Enterprise
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.

在 Splunk Enterprise 10.4.2 之前的版本中，拥有能够管理搜索头集群的高权限 Splunk 角色的用户，可以通过搜索头集群成员捆绑包（bundle）的表述状态转移（REST）API 将文件写入 Splunk Enterprise 服务账户可以访问的目录。该漏洞可能被利用以实现远程代码执行。成功利用此漏洞可能导致攻击者访问所有相关数据，并影响 Splunk 部署的完整性和可用性。 此漏洞不影响 Splunk Enterprise 10.4 之前的版本。该漏洞存在的原因是：搜索头集群成员捆绑包的

CVSS 6.0 · Medium EPSS 0.40% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
Splunk Splunk Enterprise 10.4< 10.4.2 affected
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I. Basic Information for CVE-2026-76345

Vulnerability Information
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Vulnerability Title
Remote Code Execution (RCE) through the REST API in Splunk Enterprise
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk Enterprise versions below 10.4.2, a user with a high-privilege Splunk role that can manage search head clustering could use the search head cluster member bundle Representational State Transfer (REST) API to write files to locations that the user account running Splunk Enterprise can write to, which could allow for remote code execution. Successful exploitation could result in access to all relevant data and could affect the integrity and availability of the Splunk deployment. The vulnerability does not affect Splunk Enterprise versions below 10.4. The vulnerability is possible because the search head cluster member bundle REST API does not enforce the expected authorization boundary and does not validate bundle paths before accepting bundle content. For more information see Using the REST API reference (https://help.splunk.com/en/splunk-enterprise/rest-api-reference/10.2/introduction/using-the-rest-api-reference), 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), and About distributed search (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/9.4/overview-of-distributed-search/about-distributed-search) in the Splunk documentation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Splunk Splunk Enterprise 10.4 ~ 10.4.2 -

II. Public POCs for CVE-2026-76345

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III. Intelligence Information for CVE-2026-76345

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Same Patch Batch · Splunk · 2026-08-19 · 110 CVEs total

CVE-2026-76311 9.4 CRITICAL Improper Access Control in Embedded Report Dispatch Archives in Splunk Enterprise
CVE-2026-76310 9.4 CRITICAL Improper Access Control through Embedded Report REST API Requests in Splunk Enterprise
CVE-2026-76312 9.4 CRITICAL Improper Access Control through Embedded Reports in Splunk Enterprise
CVE-2026-76404 9.1 CRITICAL Remote Code Execution (RCE) through Deserialization of Untrusted Data in Splunk MCP Server
CVE-2026-76335 8.8 HIGH Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise
CVE-2026-76389 8.8 HIGH Server-Side Request Forgery (SSRF) through the REST API in Cisco Talos Intelligence for En
CVE-2026-76350 8.8 HIGH Improper Privilege Management through PDF Attachments for Email Alert Actions in Splunk En
CVE-2026-76351 8.8 HIGH Server-Side Request Forgery (SSRF) through the Report Notification REST API in Splunk Secu
CVE-2026-76319 8.8 HIGH Remote Code Execution (RCE) through Federated Search in Splunk Enterprise
CVE-2026-76316 8.8 HIGH Stored SPL Injection through Deployment Server Broker Registration in Splunk Enterprise
CVE-2026-76395 8.8 HIGH Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading
CVE-2026-76253 8.8 HIGH Privilege Escalation through Scheduled Search Alert Action Configuration in Splunk Enterpr
CVE-2026-76352 8.8 HIGH Improper Authorization through the REST API in Splunk Enterprise
CVE-2026-76315 8.8 HIGH Code Injection through Splunk Web Manager Configuration in Splunk Enterprise
CVE-2026-76259 8.8 HIGH Improper Privilege Management on the Management Port in Splunk Enterprise for Windows
CVE-2026-76317 8.8 HIGH Path Traversal through the Lookup Configuration REST API in Splunk Enterprise
CVE-2026-76314 8.8 HIGH Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise
CVE-2026-76313 8.8 HIGH Remote Code Execution (RCE) through the REST API in Splunk Enterprise
CVE-2026-76394 8.3 HIGH Missing Authorization in Container and Connection Management through the REST API in Splun
CVE-2026-76391 8.3 HIGH Improper Privilege Management through Agent Run History in Splunk AI Toolkit

Showing top 20 of 110 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-284

V. Comments for CVE-2026-76345

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