CSRF in Splunk
CVE-2026-20296
In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.7, 10.3.2512.16, 10.2.2510.18, and 10.1.2507.24, an attacker could trick a user that holds a role with the `list_deployment_server` capability into running arbitrary Search Processing Language (SPL) searches on their behalf as `splunk-system-user`, allowing for access to stored credentials and indexed data.<br><br>The vulnerability is possible because Deployment Server endpoints in Splunk Web do not validate Cross-Site Request Forgery (CSRF) tokens on GET requests, and caller-supplied input is not correctly neutralized before it is placed into an SPL search.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.002 (7.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Splunk — versions 10.4.0
- Splunk Cloud Platform — versions 10.5.2605, 10.4.2604, 10.3.2512
- Splunk Cloud Platform
- Splunk Enterprise — versions 10.4, 10.2, 10.0
Weakness classification (CWE)
References
- advisory.splunk.com/advisories/SVD-2026-0702 (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20296?
- CVE-2026-20296 is a high-severity vulnerability in Splunk, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.3/10. Published 2026-07-15.
- How severe is CVE-2026-20296?
- High severity. CVSS v3 base score is 8.3 out of 10.