CVE-2026-20255

EUVD-2026-36083
In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.13, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious classic dashboard that exfiltrates sensitive data to an external server.  

The vulnerability exists because URL validation on the external content dialog is incomplete, which can allow for requests to untrusted domains when a user interacts with a crafted dashboard.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ciscoCNA
5.7 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
splunksplunk
10.2 ≤
𝑥
< 10.2.4
CNA
splunksplunk
10.0 ≤
𝑥
< 10.0.7
CNA
splunksplunk
9.4 ≤
𝑥
< 9.4.12
CNA
splunksplunk
9.3 ≤
𝑥
< 9.3.13
CNA
splunksplunk
10.3.2512 ≤
𝑥
< 10.3.2512.13
CNA
splunksplunk
10.2.2510 ≤
𝑥
< 10.2.2510.15
CNA
splunksplunk
10.1.2507 ≤
𝑥
< 10.1.2507.23
CNA
splunksplunk
9.3.2411 ≤
𝑥
< 9.3.2411.132
CNA