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CVE-2026-76306— Information Disclosure through REST API Query Filters in Splunk SOAR

Quick assessment

Affected
Splunk Splunk SOAR
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 SOAR 8.7.0 之前的版本中，拥有“观察者（Observer）”角色的用户可利用表示状态转移（REST）API 中的查询过滤器，推断出其他用户的密码哈希值及授权令牌。 该信息泄露漏洞产生的原因是：Splunk SOAR 在执行敏感字段的查询保护之前，已先对用户记录应用了 REST API 的查询过滤器。 更多信息请参阅 Splunk 官方文档中的以下内容： 《Splunk SOAR（本地部署）REST API 参考指南》（https://help.splunk.com/en/splunk-s

CVSS 7.5 · High
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I. Basic Information for CVE-2026-76306

Vulnerability Information
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Vulnerability Title
Information Disclosure through REST API Query Filters in Splunk SOAR
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk SOAR versions below 8.7.0, a user that has the "Observer" role could use query filters in the Representational State Transfer (REST) API to infer password hashes and authorization tokens for other users. The information disclosure is possible because Splunk SOAR applies REST API query filters to user records before it protects sensitive fields from query processing. For more information see Using the REST API reference for Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/8.5.0/using-the-splunk-soar-rest-api/using-the-rest-api-reference-for-splunk-soar-on-premises), Query for Data (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/7.1.0/using-the-splunk-soar-rest-api/query-for-data), and Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.5.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) in the Splunk documentation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Splunk Splunk SOAR 0 ~ 8.7.0 -

II. Public POCs for CVE-2026-76306

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III. Intelligence Information for CVE-2026-76306

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Vendor Pages for CVE-2026-76306 (1)

Same Patch Batch · Splunk · 2026-10-21 · 31 CVEs total

CVE-2026-76291 8.8 HIGH Improper Access Control through Scheduled Search Safeguards in Splunk Enterprise
CVE-2026-76298 8.8 HIGH Use of Hard-coded Cryptographic Key in the PostgreSQL Sidecar Service in Splunk Enterprise
CVE-2026-76290 7.5 HIGH Denial of Service (DoS) through Unauthenticated Package Downloads over the REST API in Spl
CVE-2026-76288 7.5 HIGH Denial of Service (DoS) through Splunk Web Content-Type Header Parsing in Splunk Enterpris
CVE-2026-76307 7.2 HIGH Sensitive Information Disclosure through REST API Query Filters in Splunk SOAR
CVE-2026-76293 7.2 HIGH Remote Code Execution (RCE) through Splunk Web Manager Extensible Markup Language (XML) in
CVE-2026-76289 6.5 MEDIUM Denial of Service (DoS) through the REST API in Splunk Enterprise
CVE-2026-76305 6.5 MEDIUM Improper Access Control during App Downloads in Splunk SOAR
CVE-2026-76292 6.5 MEDIUM Missing Authorization through REST API Endpoints in Splunk Secure Gateway
CVE-2026-76308 6.5 MEDIUM Missing Authorization through the REST API in Splunk SOAR
CVE-2026-76406 5.9 MEDIUM Information Disclosure through REST API Authentication in Splunk SOAR
CVE-2026-76303 5.7 MEDIUM Stored Cross-Site Scripting (XSS) through App Documentation in Splunk SOAR
CVE-2026-76287 5.4 MEDIUM Authorization Bypass in the Data Management REST API in Splunk Enterprise
CVE-2026-76296 4.3 MEDIUM Missing Authorization through Sourcetype Renaming in Splunk Web for Splunk Enterprise
CVE-2026-76295 4.3 MEDIUM SPL Injection through the REST API in Splunk Secure Gateway
CVE-2026-76304 4.3 MEDIUM Sensitive Information Disclosure through Automation Broker Configuration in Splunk SOAR
CVE-2026-76294 4.3 MEDIUM Improper Access Control in Field Extraction Management in Splunk Enterprise
CVE-2026-76297 4.2 MEDIUM Federated Search Provider State Change through Cross-Site Request Forgery (CSRF) in Splunk
CVE-2026-76526 Improper Neutralization in Splunk SOAR
CVE-2026-76302 Security Hardening in Splunk Enterprise - October 2026

Showing top 20 of 31 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Splunk SOAR
Same vendor: Splunk
Same weakness: CWE-200

V. Comments for CVE-2026-76306

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