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TI-2021-08103 Aliases CVE-2021-26253GHSA-2393-5754-m287

Bypass of Splunk Enterprise's implementation of DUO MFA

Priority LOW 37CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

A potential vulnerability in Splunk Enterprise's implementation of DUO MFA allows for bypassing the MFA verification in Splunk Enterprise versions before 8.1.6. The potential vulnerability impacts Splunk Enterprise instances configured to use DUO MFA and does not impact or affect a DUO product or service.

Why it matters now

EPSS 0.00816 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk EnterpriseVersion(s) before 8.1.6—No fix listedCNA
  • Splunk Enterprise VendorSplunk Affected Version(s) before 8.1.6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*8.1.0 to before 8.1.6VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 8.1.0 to before 8.1.6 Vulnerable ·Splunk

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-26253
  2. 2026-10-03 Alias added: GHSA-2393-5754-m287

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