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Splunk Enterprise CVE-2026-76309

| EUVDEUVD-2026-63116 MEDIUM
SQL Injection (CWE-89)
2026-08-19 cisco GHSA-g5j2-rpm7-2xvg
4.3
CVSS 3.1 · Vendor: cisco
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Severity by source

Vendor (cisco) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
vuln.today AI
4.3 MEDIUM

PR:L reflects the required low-privileged account; C:L reflects limited read-only SQL injection with no integrity or availability impact confirmed by description or CVSS.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (cisco).

CVSS VectorVendor: cisco

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Aug 19, 2026 - 22:33 vuln.today
Patch available
Aug 19, 2026 - 22:04 EUVD
CVE Published
Aug 19, 2026 - 21:34 nvd
MEDIUM 4.3

DescriptionCVE.org

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a low-privileged user that does not hold the "admin" or "power" Splunk roles could inject Structured Query Language (SQL) through the Representational State Transfer (REST) API, causing Splunk Enterprise to evaluate attacker-controlled text as part of a database query. The SQL injection is possible because the REST API incorporates user-supplied filter values into database queries without proper neutralization.

AnalysisAI

SQL injection in Splunk Enterprise's REST API allows low-privileged authenticated users to embed attacker-controlled SQL fragments into backend database queries, potentially exposing data beyond their authorized scope. Four actively maintained version branches are affected - 9.4.x, 10.0.x, 10.2.x, and 10.4.x - with patched releases available across all branches per the vendor advisory SVD-2026-0801. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain low-privileged Splunk account
Delivery
Identify REST API filter endpoint
Exploit
Craft SQL-injecting filter parameter
Execution
Send HTTP request to management port (8089)
Persist
Trigger unsanitized backend query
Impact
Extract data from Splunk internal database

Vulnerability AssessmentAI

Exploitation Exploitation requires a valid Splunk Enterprise user account that does not hold the 'admin' or 'power' role - any standard low-privileged account is sufficient per the CVE description. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N scores 4.3 (Medium), reflecting a network-accessible, low-complexity attack requiring only a low-privileged account, with limited read-only confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An insider or attacker who has obtained a low-privileged Splunk Enterprise account (one without admin or power role) sends a crafted HTTP request to the Splunk REST API management port, embedding SQL metacharacters into a filter parameter. The unparameterized query construction causes Splunk's backend database to evaluate the injected SQL, allowing the attacker to enumerate tables or extract data rows beyond their authorized scope. …
Remediation Upgrade Splunk Enterprise to a patched release corresponding to your active branch: 10.4.2, 10.2.6, 10.0.9, or 9.4.14. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-76309 vulnerability details – vuln.today

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