Information disclosure in Splunk
CVE-2026-20165
In Splunk Enterprise versions below 10.2.1, 10.0.4, 9.4.9, and 9.3.10, and Splunk Cloud Platform versions below 10.2.2510.7, 10.1.2507.17, 10.0.2503.12, and 9.3.2411.124, a low-privileged user that does not hold the "admin" or "power" Splunk roles could retrieve sensitive information by inspecting the job's search log due to improper access control in the MongoClient logging channel.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (5.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.2% 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 10.2.0
- Splunk Cloud Platform — versions 10.2.2510, 10.1.2507, 10.0.2503
- Splunk Cloud Platform
- Splunk Enterprise — versions 10.2, 10.0, 9.4
Weakness classification (CWE)
References
- advisory.splunk.com/advisories/SVD-2026-0304 (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20165?
- CVE-2026-20165 is a medium-severity vulnerability in Splunk, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.3/10. Published 2026-03-11.
- How severe is CVE-2026-20165?
- Medium severity. CVSS v3 base score is 6.3 out of 10.