Zero Day MonitorZDM
DashboardVulnerabilitiesTrendingZero-DaysNewsAbout
Login
ImpressumPrivacy Policy
Zero Day Monitor © 2026
3175 articles · 162186 vulns · 38/41 feeds (7d)
← Back to list
5.5
CVE-2026-20259EXPLOITEDPATCHED
splunk · splunk enterpri

Improper Access Control in Splunk Enterprise

Description

A vulnerability classified as critical was found in Splunk Enterprise and Cloud Platform. This vulnerability affects unknown code of the component Ownership Reassignment Endpoint. The manipulation results in improper access controls. This vulnerability is known as CVE-2026-20259. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Affected Products

VendorProductVersions
splunksplunk enterpri10.2, 10.0, 10.3.2512, 10.2.2510, 10.1.2507, 10.0.2503, 9.3.2411

References

  • https://advisory.splunk.com/advisories/SVD-2026-0609

Related News (1 articles)

Tier C
VulDB3h ago
CVE-2026-20259 | Splunk Enterprise/Cloud Platform Ownership Reassignment Endpoint access control (SVD-2026-0609)
→ No new info (linked only)
CVSS 3.15.5 CRITICAL
VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
10.2.410.0.710.3.2512.1210.2.2510.1510.1.2507.2310.0.2503.149.3.2411.131
CWECWE-284
PublishedJun 10, 2026
Last enriched3h agov2
Trending Score51
Source articles2
Independent1
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

Community Vote

0
Login to vote
0 upvotes0 downvotes
No votes yet

Related CVEs (5)

CRITICALCVE-2026-20251EXP
Remote Code Execution through Deserialization of Untrusted Data in Splunk Secure Gateway
Trending: 66
CRITICALCVE-2026-20252EXP
Server-Side Request Forgery (SSRF) through Dashboard Studio PDF Export in Splunk Enterprise
Trending: 51
CRITICALCVE-2026-20254EXP
Information Disclosure through External Content Restriction Bypass in Splunk Enterprise
Trending: 51
HIGHCVE-2026-20257EXP
Improper Input Validation through Classic Dashboard CSS in Splunk Enterprise
Trending: 48
HIGHCVE-2026-20260EXP
Log Injection through HTTP Request Paths in Splunk SOAR
Trending: 48

Pin to Dashboard

Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Jun 10, 2026
Discovered by ZDM
Jun 10, 2026
Actively Exploited
Jun 10, 2026
Patch Available
Jun 10, 2026
Updated: description, severity, activelyExploited
Jun 10, 2026

Version History

v2
Last enriched 3h ago
v2Tier C3h ago

Updated severity to CRITICAL, changed exploit availability to false, and provided a new description with additional details.

descriptionseverityactivelyExploited
via VulDB
v15h ago

Initial creation