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TI-2026-69292 Aliases CVE-2026-76268GHSA-rxjh-rj2v-47gx

Missing authentication in Splunk Enterprise Patroni REST API

Priority MEDIUM 58CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

Splunk Enterprise from 10.4 before 10.4.3 and from 10.2 before 10.2.7 is affected. The Patroni REST API does not require authentication for critical configuration operations (CWE-306). An unauthenticated user with network access to a search head cluster member can execute attacker-controlled operating system commands. Splunk Enterprise versions 10.0.x and 9.4.x are not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

In Splunk Enterprise versions below 10.4.3 and 10.2.7, an unauthenticated user with network access to the Patroni Representational State Transfer (REST) Application Programming Interface (API) on a search head cluster member could execute attacker-controlled operating-system commands. The vulnerability is possible because this interface does not require authentication for critical configuration operations. For more information see Sidecar configuration settings (https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation. Splunk Enterprise versions 10.0.x and 9.4.x are not affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.05746 93rd percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 10.4.3, 10.2.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk Enterprise10.4 to before 10.4.3; 10.2 to before 10.2.710.4.3, 10.2.7Patch availableCNA
  • Splunk Enterprise VendorSplunk Affected 10.4 to before 10.4.3; 10.2 to before 10.2.7 Fixed in 10.4.3, 10.2.7 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*10.2.0 to before 10.2.7; 10.4.0 to before 10.4.3VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 10.2.0 to before 10.2.7; 10.4.0 to before 10.4.3 Vulnerable ·Splunk

Remediation

Upgrade Splunk Enterprise to version 10.4.3 or 10.2.7, which fix the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Splunk Enterprise (Splunk) Fixed in 10.4.3, 10.2.7

Timeline

  1. 2026-10-07 Threatist record created from CVE-2026-76268
  2. 2026-10-07 Alias added: GHSA-rxjh-rj2v-47gx
  3. 2026-10-08 CISA SSVC decision points changed
  4. 2026-10-09 CISA SSVC decision points changed
  5. 2026-10-16 EPSS moved to the 50th–90th percentile
  6. 2026-10-25 EPSS moved to the 90th–95th percentile

References

Advisory 1

  • TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
  • TI-2023-15979 ‘edit_user’ Capability Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2024-30707 Remote Code Execution (RCE) due to insecure session storage configuration in Splunk Enterprise on Windows CVSS 3.1HIGH 8.8
  • TI-2022-21345 Reflected Cross-Site Scripting via the radio template in Splunk Enterprise CVSS 3.1HIGH 8.8
See all 297 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences