Splunk Enterprise/Cloud Platform prior 9.2.11/9.3.8/9.4.7/10.0.2 Search Head Cluster log file

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Splunk Enterprise and Cloud Platform. This impacts an unknown function of the component Search Head Cluster. Such manipulation leads to log file. This vulnerability is documented as CVE-2026-20144. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Splunk Enterprise and Cloud Platform and classified as problematic. Affected by this issue is some unknown functionality of the component Search Head Cluster. The manipulation with an unknown input leads to a log file vulnerability. Using CWE to declare the problem leads to CWE-532. Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information. Impacted is confidentiality. CVE summarizes:

In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.7, 9.3.8, and 9.2.11, and Splunk Cloud Platform versions below 10.2.2510.0, 10.1.2507.11, 10.0.2503.9, and 9.3.2411.120, a user of a Splunk Search Head Cluster (SHC) deployment who holds a role with access to the the Splunk _internal index could view the Security Assertion Markup Language (SAML) configurations for Attribute query requests (AQRs) or Authentication extensions in plain text within the conf.log file, depending on which feature is configured.

The advisory is available at advisory.splunk.com. This vulnerability is handled as CVE-2026-20144 since 10/08/2025. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 299408 (Splunk Enterprise 9.2.0 < 9.2.11, 9.3.0 < 9.3.8, 9.4.0 < 9.4.7, 10.0.0 < 10.0.2 (SVD-2026-0209)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.2.11, 9.3.8, 9.4.7 or 10.0.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (299408) and CERT Bund (WID-SEC-2026-0457). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Splunk Splunk Enterprise

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔒

CNA Base Score: 6.8
CNA Vector (cisco): 🔒

CVSSv2info

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

Exploitinginfo

Class: Log file
CWE: CWE-532 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299408
Nessus Name: Splunk Enterprise 9.2.0 < 9.2.11, 9.3.0 < 9.3.8, 9.4.0 < 9.4.7, 10.0.0 < 10.0.2 (SVD-2026-0209)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Enterprise/Cloud Platform 9.2.11/9.3.8/9.4.7/10.0.2

Timelineinfo

10/08/2025 CVE reserved
02/18/2026 +133 days Advisory disclosed
02/18/2026 +0 days VulDB entry created
02/23/2026 +5 days VulDB entry last update

Sourcesinfo

Advisory: SVD-2026-0209
Status: Confirmed

CVE: CVE-2026-20144 (🔒)
GCVE (CVE): GCVE-0-2026-20144
GCVE (VulDB): GCVE-100-346586
CERT Bund: WID-SEC-2026-0457 - Splunk Splunk Enterprise: Mehrere Schwachstellen

Entryinfo

Created: 02/18/2026 18:42
Updated: 02/23/2026 15:48
Changes: 02/18/2026 18:42 (65), 02/19/2026 01:30 (2), 02/20/2026 09:47 (7), 02/23/2026 15:48 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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