CVE-2026-76334 SPL Injection through Dashboard Studio Workflow Actions in Splunk Enterprise
An attacker with power role can inject SPL via workflow actions, causing another user to execute it, leading to data access or modification.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-76334?
CVE-2026-76334 is a medium-severity vulnerability in Splunk Splunk, published on 19 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who holds the "power" Splunk role could store a Dashboard Studio workflow action containing attacker-controlled Search Processing Language (SPL). When another authenticated user selects the action from Event Actions and selects Continue, Splunk Enterprise runs the injected SPL using the permissions of that user. The injected SPL could access or modify data available to that user. The vulnerability is possible because Dashboard Studio does not sufficiently validate workflow-action URLs before submitting requests. The vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The user who holds the "power" Splunk role should not be able to exploit the vulnerability at will.
Weakness: CWE-352
Which versions are affected by CVE-2026-76334?
It affects 1 product.
Products include Splunk Splunk.
How do I fix CVE-2026-76334?
No fix has been published for CVE-2026-76334 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76334 being exploited?
There is no known exploitation of CVE-2026-76334 in the wild and no public exploit code.
Other vulnerabilities in Splunk Splunk
- CVE-2026-20253 Splunk Enterprise Missing Authentication for Critical Function
- CVE-2026-76268 Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
- CVE-2026-76284 Improper Neutralization in Splunk Enterprise
- CVE-2026-76285 Improper Adherence to Coding Standards in Splunk Enterprise
- CVE-2017-17067 Auth bypass in n/a
Sources
Also known as GHSA-8h24-h477-78jp.