CVE-2025-20366 Improper Access Control in Background Job Submission in Splunk Enterprise
Low-privileged users can access sensitive search results from background jobs by guessing the Search ID, exposing confidential data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-20366?
CVE-2025-20366 is a medium-severity missing authorization vulnerability in Splunk Splunk, published on 1 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Splunk Enterprise versions below 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.111, 9.3.2408.119, and 9.2.2406.122, a low-privileged user that does not hold the admin or power Splunk roles could access sensitive search results if Splunk Enterprise runs an administrative search job in the background. If the low privileged user guesses the search job’s unique Search ID (SID), the user could retrieve the results of that job, potentially exposing sensitive search results. For more information see https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/about-jobs-and-job-management and https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/manage-search-jobs.
Weakness: CWE-284
Which versions are affected by CVE-2025-20366?
It affects 2 products.
Products include Splunk Splunk, Splunk Splunk Cloud Platform.
How do I fix CVE-2025-20366?
No fix has been published for CVE-2025-20366 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-20366 being exploited?
There is no known exploitation of CVE-2025-20366 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-rp2x-mr47-fvmf.