CVE-2026-76354— Path Traversal through Search Head Clustering 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.
Splunk Enterprise是美国Splunk公司的一款日志分析系统。 Splunk Enterprise 10.4.2之前版本、10.2.6之前版本、10.0.9之前版本和9.4.14之前版本存在输入验证错误漏洞，该漏洞源于Search Head Clustering bundle replication未验证复制的捆绑文件名或在构造成员捆绑路径前未中和NUL字节，可能导致不具备admin或power角色的用户通过发送特制REST API请求删除或临时覆盖可写文件，影响系统完整性和可用性。
Possible ATT&CK Techniques 1 AI
T1565.001 · Stored Data ManipulationAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Splunk | Splunk Enterprise | 10.4< 10.4.2 |
affected |
10.2< 10.2.6 |
affected | ||
10.0< 10.0.9 |
affected | ||
9.4< 9.4.14 |
affected |
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I. Basic Information for CVE-2026-76354
Vulnerability Information
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Vulnerability Title
Path Traversal through Search Head Clustering in Splunk Enterprise
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could affect system integrity and availability by sending a crafted Representational State Transfer (REST) API request that deletes or temporarily overwrites files writable by the user account running Splunk Enterprise processes on a non-captain search head cluster member. The vulnerability is possible because Search Head Clustering bundle replication does not validate the name of a replicated bundle file or neutralize NUL bytes before constructing the member bundle path. For more information see About search head clustering (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/10.4/overview-of-search-head-clustering/about-search-head-clustering), Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities), and Secure Splunk Enterprise service accounts (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/9.0/install-splunk-enterprise-securely/secure-splunk-enterprise-service-accounts) in the Splunk documentation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空字节或NULL字符转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Splunk Enterprise 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Splunk Enterprise是美国Splunk公司的一款日志分析系统。 Splunk Enterprise 10.4.2之前版本、10.2.6之前版本、10.0.9之前版本和9.4.14之前版本存在输入验证错误漏洞，该漏洞源于Search Head Clustering bundle replication未验证复制的捆绑文件名或在构造成员捆绑路径前未中和NUL字节，可能导致不具备admin或power角色的用户通过发送特制REST API请求删除或临时覆盖可写文件，影响系统完整性和可用性。
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 |
|---|---|---|---|---|
| Splunk | Splunk Enterprise | 10.4 ~ 10.4.2 | - |
|
II. Public POCs for CVE-2026-76354
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Splunk · 2026-08-19 · 110 CVEs total
| CVE-2026-76312 | 9.4 CRITICAL | Improper Access Control through Embedded Reports in Splunk Enterprise |
| 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-2026-76404 | 9.1 CRITICAL | Remote Code Execution (RCE) through Deserialization of Untrusted Data in Splunk MCP Server |
| CVE-2026-76253 | 8.8 HIGH | Privilege Escalation through Scheduled Search Alert Action Configuration in Splunk Enterpr |
| CVE-2026-76315 | 8.8 HIGH | Code Injection through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76352 | 8.8 HIGH | Improper Authorization through the REST API in Splunk Enterprise |
| CVE-2026-76313 | 8.8 HIGH | Remote Code Execution (RCE) through the REST API in Splunk Enterprise |
| CVE-2026-76316 | 8.8 HIGH | Stored SPL Injection through Deployment Server Broker Registration in Splunk Enterprise |
| CVE-2026-76314 | 8.8 HIGH | Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76335 | 8.8 HIGH | Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76317 | 8.8 HIGH | Path Traversal through the Lookup Configuration REST API 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-2026-76259 | 8.8 HIGH | Improper Privilege Management on the Management Port in Splunk Enterprise for Windows |
| 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-2026-76395 | 8.8 HIGH | Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading |
| CVE-2026-76391 | 8.3 HIGH | Improper Privilege Management through Agent Run History in Splunk AI Toolkit |
| CVE-2026-76394 | 8.3 HIGH | Missing Authorization in Container and Connection Management through the REST API in Splun |
Showing top 20 of 110 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Splunk Enterprise
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CVE-2026-76285
Improper Adherence to Coding Standards in Splunk Enterprise -
CVE-2026-76284
Improper Neutralization in Splunk Enterprise -
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Protection Mechanism Failure in Splunk Enterprise -
CVE-2026-76282
Improper Control of a Resource Through its Lifetime in Splun -
CVE-2026-76281
Improper Access Control in Splunk Enterprise
Same vendor: Splunk
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CVE-2026-76284
Improper Neutralization in Splunk Enterprise -
CVE-2026-76281
Improper Access Control in Splunk Enterprise
Same weakness: CWE-158
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