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CVE-2026-76278— Authorization Bypass in SPL2 Module Permissions 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 10.4.3、10.2.7 和 10.0.10 以下版本中，拥有具备 能力的角色的用户，可以利用受影响的表示状态转换（REST）API，访问其无权查看的 SPL2 模块的权限授予信息。该漏洞产生的原因是：Splunk Enterprise 在受影响 REST API 返回 SPL2 模块权限授予信息之前，未验证用户是否具有读取所请求应用的权限。 有关详细信息，请参阅 Splunk 文档中的“模块权限”（https://help.splunk.com/en/splunk-ent

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-76278

Vulnerability Information
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Vulnerability Title
Authorization Bypass in SPL2 Module Permissions in Splunk Enterprise
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the edit_spl2_module_permissions capability could use the affected Representational State Transfer (REST) API to access permission grants for SPL2 modules that the user does not have permission to view. The vulnerability is possible because Splunk Enterprise does not verify that the user can read the requested app before the affected REST API returns SPL2 module permission grants. For more information see Module permissions (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/modules-statements-and-views/module-permissions) and Manage SPL2 modules (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/multiple-searches-in-an-spl2-module/manage-spl2-modules) in the Splunk documentation. Splunk Enterprise versions 9.4.x are not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Splunk Splunk Enterprise 10.4 ~ 10.4.3 -

II. Public POCs for CVE-2026-76278

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III. Intelligence Information for CVE-2026-76278

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Other References for CVE-2026-76278 (1)

Same Patch Batch · Splunk · 2026-10-07 · 23 CVEs total

CVE-2026-76268 9.8 CRITICAL Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
CVE-2026-76266 7.7 HIGH Local Privilege Escalation through Linux Package Upgrades in Splunk Enterprise
CVE-2026-76265 6.5 MEDIUM Improper Access Control through REST API Endpoints in Splunk Secure Gateway
CVE-2026-76274 6.5 MEDIUM Server-Side Request Forgery (SSRF) through the REST API in Splunk App for Splunk Observabi
CVE-2026-76269 6.5 MEDIUM Improper Access Control in Search Job Retrieval through the REST API in Splunk Enterprise
CVE-2026-76270 6.5 MEDIUM Structured Query Language (SQL) Injection in the SPL2 Module Catalog in Splunk Enterprise
CVE-2026-76271 6.5 MEDIUM Denial of Service (DoS) in the Discover Splunk Observability Cloud app for Splunk Enterpri
CVE-2026-76280 6.3 MEDIUM Incorrect Permission Assignment for App Key Value Store Collections in Splunk Secure Gatew
CVE-2026-76286 5.3 MEDIUM Server-Side Request Forgery (SSRF) through Custom API Tools in Splunk MCP Server
CVE-2026-76272 4.3 MEDIUM Missing Access Control through the REST API in Splunk Secure Gateway
CVE-2026-76267 4.3 MEDIUM Log Injection through the REST API in Splunk App for Splunk O11y Cloud
CVE-2026-76264 4.3 MEDIUM Improper Authorization through the REST API in Splunk Enterprise
CVE-2026-76276 4.3 MEDIUM Information Disclosure in the Discover Splunk Observability Cloud app through Splunk Web f
CVE-2026-76275 4.3 MEDIUM Improper Authorization in Search Job Listings through the REST API in Splunk Enterprise
CVE-2026-76273 4.3 MEDIUM Improper Input Validation through the collect Command in Splunk Enterprise
CVE-2026-76279 4.3 MEDIUM Improper Input Validation of Index Names through the collect Command in Splunk Enterprise
CVE-2026-76277 4.1 MEDIUM Improper Input Validation of Native Splunk Usernames through the REST API in Splunk Enterp
CVE-2026-76281 Improper Access Control in Splunk Enterprise
CVE-2026-76284 Improper Neutralization in Splunk Enterprise
CVE-2026-76285 Improper Adherence to Coding Standards in Splunk Enterprise

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-639

V. Comments for CVE-2026-76278

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