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splunk

Vendor: splunk

Actively Exploited 2 CISA KEV List
PoC / Exploits 13 Code Available
Total RCEs 21 Remote Access
Total CVEs 469 Total Indexed
Avg. EPSS 3.97% Exploit Prob.
Latest CVE CVE-2026-20259 Jun 10

Security Vulnerability Index

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5.3 CVSS

The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.

EPSS: 0.83%
7.5 CVSS

A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders.

EPSS: 0.83%
8.1 CVSS

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.

EPSS: 0.76%
7.5 CVSS

The lack of validation of a key-value field in the Splunk-to-Splunk protocol results in a denial-of-service in Splunk Enterprise instances configured to index Universal Forwarder traffic. The vulnerability impacts Splunk Enterprise versions before 7.3.9, 8.0 versions before 8.0.9, and 8.1 versions before 8.1.3. It does not impact Universal Forwarders. When Splunk forwarding is secured using TLS or a Token, the attack requires compromising the certificate or token, or both. Implementation of either or both reduces the severity to Medium.

EPSS: 0.58%
7.8 CVSS

Splunk 5.0.3 has an Unquoted Service Path in Windows for Universal Forwarder which can allow an attacker to escalate privileges

EPSS: 0.27%
4.3 CVSS

Splunk before 5.0.4 lacks X-Frame-Options which can allow Clickjacking

EPSS: 0.68%
8.8 CVSS

A sandbox bypass vulnerability in Jenkins Splunk Plugin 1.7.4 and earlier allowed attackers with Overall/Read permission to provide a Groovy script to an HTTP endpoint that can result in arbitrary code execution on the Jenkins master JVM.

EPSS: 1.68%
5.4 CVSS

Splunk Web in Splunk Enterprise 6.5.x before 6.5.5, 6.4.x before 6.4.9, 6.3.x before 6.3.12, 6.2.x before 6.2.14, 6.1.x before 6.1.14, and 6.0.x before 6.0.15 and Splunk Light before 6.6.0 has Persistent XSS, aka SPL-138827.

EPSS: 0.64%
7.5 CVSS

Splunk Enterprise 6.2.x before 6.2.14, 6.3.x before 6.3.10, 6.4.x before 6.4.7, and 6.5.x before 6.5.3; and Splunk Light before 6.6.0 allow remote attackers to cause a denial of service via a crafted HTTP request.

EPSS: 2.27%
6.5 CVSS

Directory traversal vulnerability in the Splunk Django App in Splunk Enterprise 6.0.x before 6.0.14, 6.1.x before 6.1.13, 6.2.x before 6.2.14, 6.3.x before 6.3.10, 6.4.x before 6.4.6, and 6.5.x before 6.5.3; and Splunk Light before 6.6.0 allows remote authenticated users to read arbitrary files via unspecified vectors.

EPSS: 2.28%