CVE-2026-20203: Splunk Enterprise · The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Affects Splunk EnterpriseSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium · fixed in 10.2.2 : update Splunk Enterprise when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 10.2.2, 10.0.5, 9.4.10 +6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SplunkSplunk Enterprise | Affected
| Fixed in
|
| SplunkSplunk Enterprise | Affected
| Fixed in
|
| SplunkSplunk Enterprise | Affected
| Fixed in
|
| SplunkSplunk Enterprise | Affected
| Fixed in
|
| SplunkSplunk Cloud Platform | Affected
| Fixed in
|
AI-suggested
Since this affects specific versions below certain releases, upgrading to the fixed versions listed by Splunk when available is recommended. Until then, restrict write permissions on apps to trusted users and review role assignments to minimize exposure.
Description
In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.6, 10.2.2510.10, 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, has write permission on the app, and does not hold the high-privilege capability `accelerate_datamodel`, could turn on or off Data Model Acceleration due to improper access control.