Log Injection through HTTP Request Paths in Splunk SOAR
CVE-2026-20260

4.3MEDIUM

Key Information:

Vendor

Splunk
Status
Splunk Soar
Vendor
CVE Published:
10 June 2026

What is CVE-2026-20260?

In Splunk SOAR (Security Orchestration, Automation, and Response) versions below 8.5.0, an unauthenticated attacker could inject American National Standards Institute (ANSI) escape codes into SOAR application log files through specially crafted HTTP request paths, which a terminal emulator might interpret when an administrator views the logs.The injection is possible because SOAR does not strip control characters from HTTP request paths before writing them to application logs.

Affected Version(s)

Splunk SOAR 8.5 < 8.5.0

References

https://advisory.splunk.com/advisories/SVD-2026-0611

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

STĂ–K / Fredrik Alexandersson
.