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TI-2026-16374 Aliases CVE-2026-20166GHSA-phr8-q335-28xj

Sensitive Information Disclosure in Discover Splunk Observability Cloud app for Splunk Enterprise

Priority LOW 24CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

In Splunk Enterprise versions below 10.2.1 and 10.0.4, and Splunk Cloud Platform versions below 10.2.2510.5, 10.1.2507.16, and 10.0.2503.12, a low-privileged user that does not hold the "admin" or "power" Splunk roles could retrieve the Observability Cloud API access token through the Discover Splunk Observability Cloud app due to improper access control. This vulnerability does not affect Splunk Enterprise versions below 9.4.9 and 9.3.10 because the Discover Splunk Observability Cloud app does not come with Splunk Enterprise.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00178 7th percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 10.2.1, 10.0.4Splunk Cloud Platform (Splunk): 10.2.2510.5, 10.1.2507.16, 10.0.2503.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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 Enterprise10.2 to before 10.2.1; 10.0 to before 10.0.410.2.1, 10.0.4Patch availableCNA
SplunkSplunk Cloud Platform10.2.2510 to before 10.2.2510.5; 10.1.2507 to before 10.1.2507.16; 10.0.2503 to before 10.0.2503.1210.2.2510.5, 10.1.2507.16, 10.0.2503.12Patch availableCNA
  • Splunk Enterprise VendorSplunk Affected 10.2 to before 10.2.1; 10.0 to before 10.0.4 Fixed in 10.2.1, 10.0.4 Patch available CNA
  • Splunk Cloud Platform VendorSplunk Affected 10.2.2510 to before 10.2.2510.5; 10.1.2507 to before 10.1.2507.16; 10.0.2503 to before 10.0.2503.12 Fixed in 10.2.2510.5, 10.1.2507.16, 10.0.2503.12 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*10.0.0 to before 10.0.4VulnerableSplunk
cpe:2.3:a:splunk:splunk:10.2.0:*:*:*:enterprise:*:*:*10.2.0VulnerableSplunk
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*10.0.2503 to before 10.0.2503.12; 10.1.2507 to before 10.1.2507.16; 10.2.2510 to before 10.2.2510.5VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 10.0.0 to before 10.0.4 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:splunk:10.2.0:*:*:*:enterprise:*:*:* Versions 10.2.0 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* Versions 10.0.2503 to before 10.0.2503.12; 10.1.2507 to before 10.1.2507.16; 10.2.2510 to before 10.2.2510.5 Vulnerable ·Splunk

Remediation

  • Fix · CNA Splunk Enterprise (Splunk) Fixed in 10.2.1, 10.0.4
  • Fix · CNA Splunk Cloud Platform (Splunk) Fixed in 10.2.2510.5, 10.1.2507.16, 10.0.2503.12

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20166
  2. 2026-10-03 Alias added: GHSA-phr8-q335-28xj

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