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CVE-2026-20259

Improper Access Control in Splunk Enterprise

MEDIUM
5.5
CVSS Score
Published: June 10, 2026 at 05:16 PM UTC
Updated: June 17, 2026 at 10:17 AM UTC
2 products affected across 1 vendorSplunkSplunk Cloud Platform

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In Splunk Enterprise versions below 10.2.4 and 10.0.7, and Splunk Cloud Platform versions below 10.4.2604.0, 10.3.2512.12, 10.2.2510.15, 10.1.2507.23, 10.0.2503.14, and 9.3.2411.131, a user who holds a Splunk role that contains the high-privilege capability `edit_saved_search_owner` could reassign saved search ownership to users outside their authorized scope. The ownership reassignment endpoint lacks access control.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Splunk· Splunk
95%
10.0 ≤ v < 10.0.710.0.0 ≤ v < 10.0.710.2 ≤ v < 10.2.410.2.0 ≤ v < 10.2.410.010.2
Affected range stops below 10.0.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.2.4, so it looks safe — our inference, not a vendor statement
Splunk Cloud Platform· Splunk
95%
10.0.2503 ≤ v < 10.0.2503.1410.1.2507 ≤ v < 10.1.2507.2310.2.2510 ≤ v < 10.2.2510.1510.3.2512 ≤ v < 10.3.2512.129.3.2411 ≤ v < 9.3.2411.13110.0.250310.1.250710.2.251010.3.25129.3.2411
Affected range stops below 10.0.2503.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.1.2507.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.2.2510.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.3.2512.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.3.2411.131, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://advisory.splunk.com/advisories/SVD-2026-0609

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMcisco
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284NVD-CWE-noinfo

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