CVE-2026-20260

Log Injection through HTTP Request Paths in Splunk SOAR

State: Published
Severity: 4.3 Medium
Published: Jun 10, 2026
Updated: Jun 10, 2026
Reserved: Oct 8, 2025

Description

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.<br><br>The injection is possible because SOAR does not strip control characters from HTTP request paths before writing them to application logs.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N	cisco

Weaknesses

CWE-117 The software does not neutralize or incorrectly neutralizes output that is written to logs.

Affected Products

Product	Versions
Splunk SOARSplunk	8.5 to before 8.5.0Affected

References

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

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