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CVE-2026-76274— Server-Side Request Forgery (SSRF) through the REST API in Splunk App for Splunk Observability Cloud

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 低于 10.4.3、10.2.7 和 10.0.10 的版本中，拥有 权限角色的用户可以通过表示状态传输（REST）API，将 Splunk App for Splunk Observability Cloud 的出站请求重定向到攻击者控制的宿主主机，从而泄露已配置的 Observability Cloud 应用程序编程接口（API）令牌。该漏洞的产生原因是：Splunk App for Splunk Observability Cloud 未能对出站请求的目标地址进行充分验

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-76274

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery (SSRF) through the REST API in Splunk App for Splunk Observability Cloud
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 read_o11y_content capability could redirect an outbound request from Splunk App for Splunk Observability Cloud through the Representational State Transfer (REST) API to an attacker-controlled host and disclose the configured Observability Cloud Application Programming Interface (API) token. The vulnerability is possible because Splunk App for Splunk Observability Cloud does not fully validate the destination of an outbound request. For more information see Authentication tokens (https://help.splunk.com/en/splunk-observability-cloud/administer/authentication-and-security/authentication-tokens) 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:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
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-2026-76274

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III. Intelligence Information for CVE-2026-76274

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Other References for CVE-2026-76274 (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-2026-76269 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-2026-76276 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-2026-76283 Protection Mechanism Failure in Splunk Enterprise

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

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-918

V. Comments for CVE-2026-76274

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