October 15, 2026

CVE Watchtower

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CVE-2026-20204NVD

Vulnerability Summary

In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.
Severity Level
HIGH(7.1)
Published Date
Apr 15, 2026
Last Modified
Apr 17, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.18%Probability
Root Weakness (CWE)
CWE-377: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 7.1 (HIGH)
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Splunk Splunk >= 9.3.0 and < 9.3.11
  • Splunk Splunk >= 9.4.0 and < 9.4.10
  • Splunk Splunk >= 10.0.0 and < 10.0.5
  • Splunk Splunk
  • Splunk Splunk Cloud Platform >= 9.3.2411 and < 9.3.2411.127
  • Splunk Splunk Cloud Platform >= 10.0.2503 and < 10.0.2503.13
  • Splunk Splunk Cloud Platform >= 10.1.2507 and < 10.1.2507.19
  • Splunk Splunk Cloud Platform >= 10.2.2510 and < 10.2.2510.9
  • Splunk Splunk Cloud Platform >= 10.3.2512 and < 10.3.2512.5
Patched Versions
  • Splunk Splunk 9.3.11
  • Splunk Splunk 9.4.10
  • Splunk Splunk 10.0.5
  • Splunk Splunk Cloud Platform 9.3.2411.127
  • Splunk Splunk Cloud Platform 10.0.2503.13
  • Splunk Splunk Cloud Platform 10.1.2507.19
  • Splunk Splunk Cloud Platform 10.2.2510.9
  • Splunk Splunk Cloud Platform 10.3.2512.5
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References