CVE-2026-76276— Information Disclosure in the Discover Splunk Observability Cloud app through Splunk Web for 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 版本低于 10.4.3、10.2.7 和 10.0.10 时，不具备 “admin” 或 “power” 角色的低权限用户可通过 Splunk Web 获取 “Discover Splunk Observability Cloud” 应用的原始源代码。该漏洞的产生是因为该应用的生产版 JavaScript 捆绑包中嵌入了包含原始源代码的 Source Map 文件。 有关更多信息，请参阅 Splunk 文档中的以下条目： 关于配置基于角色的用户访问控制（https://hel
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
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I. Basic Information for CVE-2026-76276
Vulnerability Information
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Vulnerability Title
Information Disclosure in the Discover Splunk Observability Cloud app through Splunk Web for 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 low-privileged user that does not hold the "admin" or "power" Splunk roles could retrieve original source code for the Discover Splunk Observability Cloud app through Splunk Web. The vulnerability is possible because production JavaScript bundles for the app contain embedded source maps that include original source code. For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access), Splunk Observability Cloud previews (https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.4/observability/splunk-observability-cloud-previews), and Navigating Splunk Web (https://help.splunk.com/en/splunk-enterprise/search/search-tutorial/10.4/part-1-getting-started/navigating-splunk-web) 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
不安全的默认资源初始化
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-2026-76276
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-76276 (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-2026-76278 | 4.3 MEDIUM | Authorization Bypass in SPL2 Module Permissions in Splunk Enterprise |
| 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-2026-76275 | 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-2026-76283 | Protection Mechanism Failure in Splunk Enterprise |
Showing top 20 of 23 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Splunk Enterprise
-
CVE-2026-76285
Improper Adherence to Coding Standards in Splunk Enterprise -
CVE-2026-76284
Improper Neutralization in Splunk Enterprise -
CVE-2026-76283
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
-
CVE-2026-76285
Improper Adherence to Coding Standards in Splunk Enterprise -
CVE-2026-76286
Server-Side Request Forgery (SSRF) through Custom API Tools -
CVE-2026-76283
Protection Mechanism Failure in Splunk Enterprise -
CVE-2026-76284
Improper Neutralization in Splunk Enterprise -
CVE-2026-76281
Improper Access Control in Splunk Enterprise
Same weakness: CWE-1188
V. Comments for CVE-2026-76276
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