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TI-2025-14672 Aliases CVE-2025-20378GHSA-r9qj-q2g9-r74r

Open Redirect on Web Login endpoint in Splunk Enterprise

Priority LOW 27CWE-601Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-601.

Summary

In Splunk Enterprise versions below 10.0.1, 9.4.5, 9.3.7, 9.2.9, and Splunk Cloud Platform versions below 10.0.2503.5, 9.3.2411.111, and 9.3.2408.121, an unauthenticated attacker could craft a malicious URL using the `return_to` parameter of the Splunk Web login endpoint. When an authenticated user visits the malicious URL, it could cause an unvalidated redirect to an external malicious site. To be successful, the attacker has to trick the victim into initiating a request from their browser. The unauthenticated attacker should not be able to exploit the vulnerability at will.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00252 16th percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 10.0.1, 9.4.5, 9.3.7 +1Splunk Cloud Platform (Splunk): 10.0.2503.5, 9.3.2411.111, 9.3.2408.121

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 Enterprise10.0 to before 10.0.1; 9.4 to before 9.4.5; 9.3 to before 9.3.7; 9.2 to before 9.2.910.0.1, 9.4.5, 9.3.7, 9.2.9Patch availableCNA
SplunkSplunk Cloud Platform10.0.2503 to before 10.0.2503.5; 9.3.2411 to before 9.3.2411.111; 9.3.2408 to before 9.3.2408.12110.0.2503.5, 9.3.2411.111, 9.3.2408.121Patch availableCNA
  • Splunk Enterprise VendorSplunk Affected 10.0 to before 10.0.1; 9.4 to before 9.4.5; 9.3 to before 9.3.7; 9.2 to before 9.2.9 Fixed in 10.0.1, 9.4.5, 9.3.7, 9.2.9 Patch available CNA
  • Splunk Cloud Platform VendorSplunk Affected 10.0.2503 to before 10.0.2503.5; 9.3.2411 to before 9.3.2411.111; 9.3.2408 to before 9.3.2408.121 Fixed in 10.0.2503.5, 9.3.2411.111, 9.3.2408.121 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*9.2.0 to before 9.2.9; 9.3.0 to before 9.3.7; 9.4.0 to before 9.4.5VulnerableSplunk
cpe:2.3:a:splunk:splunk:10.0.0:*:*:*:enterprise:*:*:*10.0.0VulnerableSplunk
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*9.3.2408 to before 9.3.2408.121; 9.3.2411 to before 9.3.2411.111; 10.0.2503 to before 10.0.2503.5VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 9.2.0 to before 9.2.9; 9.3.0 to before 9.3.7; 9.4.0 to before 9.4.5 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:splunk:10.0.0:*:*:*:enterprise:*:*:* Versions 10.0.0 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* Versions 9.3.2408 to before 9.3.2408.121; 9.3.2411 to before 9.3.2411.111; 10.0.2503 to before 10.0.2503.5 Vulnerable ·Splunk

Remediation

  • Fix · CNA Splunk Enterprise (Splunk) Fixed in 10.0.1, 9.4.5, 9.3.7, 9.2.9
  • Fix · CNA Splunk Cloud Platform (Splunk) Fixed in 10.0.2503.5, 9.3.2411.111, 9.3.2408.121

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Splunk Enterprise 10.0.1, 9.2.9 and 2 more versions

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2025-14673 Information disclosure in Splunk EnterprisePriority LOW 17
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-20378
  2. 2026-10-03 Alias added: GHSA-r9qj-q2g9-r74r

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