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

highCVSS 8.3CVE-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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8.3
Published: 2026-07-15
Last updated: 2026-07-16
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-20296

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-202960.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-20296	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownNCSC-2026-0247 [1.00] [M/H] Vulnerabilities fixed in Splunk Enterprise and Splunk Cloud Platformncsc-nl
high[NEW] [high] Splunk Splunk Enterprise: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Splunk products (July 16, 2026)cert-fr-avis

Recent advisories for In Splunk Enterprise

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[UPDATE] [high] Splunk Splunk Enterprise: Multiple vulnerabilitiescert-bund · 2026-07-23
unknownNCSC-2026-0247 [1.00] [M/H] Vulnerabilities fixed in Splunk Enterprise and Splunk Cloud Platformncsc-nl · 2026-07-17
high[NEW] [high] Splunk Splunk Enterprise: Multiple vulnerabilitiescert-bund · 2026-07-16
mediumCVE-2026-20298: In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platf…nvd · 2026-07-15
highCVE-2026-20297: In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, 9.4.13, and 9.3.14, and Splunk Clo…nvd · 2026-07-15
high[UPDATE] [high] Splunk Splunk Enterprise: Multiple vulnerabilitiescert-bund · 2026-07-10