Splunk SOAR up to 8.4.x HTTP neutralization for logs

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k2.36

Summaryinfo

A vulnerability, which was classified as problematic, was found in Splunk SOAR up to 8.4.x. Impacted is an unknown function of the component HTTP Handler. Such manipulation leads to neutralization for logs. This vulnerability is uniquely identified as CVE-2026-20260. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Splunk SOAR up to 8.4.x. It has been rated as problematic. Affected by this issue is some unknown functionality of the component HTTP Handler. The manipulation with an unknown input leads to a neutralization for logs vulnerability. Using CWE to declare the problem leads to CWE-117. The product does not neutralize or incorrectly neutralizes output that is written to logs. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at advisory.splunk.com. This vulnerability is handled as CVE-2026-20260 since 10/08/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 8.5.0 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (cisco): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Neutralization for logs
CWE: CWE-117 / CWE-116 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SOAR 8.5.0

Timelineinfo

10/08/2025 CVE reserved
06/10/2026 +245 days Advisory disclosed
06/10/2026 +0 days VulDB entry created
06/10/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: SVD-2026-0611
Status: Confirmed

CVE: CVE-2026-20260 (🔒)
GCVE (CVE): GCVE-0-2026-20260
GCVE (VulDB): GCVE-100-370232

Entryinfo

Created: 06/10/2026 22:50
Changes: 06/10/2026 22:50 (65)
Complete: 🔍
Cache ID: 216::103

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