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NVD Vulnerability Details :
CVE-2026-20239
Analyzed
More InfoOfficial Page
Source-psirt@cisco.com
View Known Exploited Vulnerability (KEV) details
Published At-20 May, 2026 | 18:16
Updated At-21 May, 2026 | 19:42

In Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a role that has access to the `_internal` index could view session cookies and response bodies that contain sensitive data.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CPE Matches
Splunk LLC (Cisco Systems, Inc.)
splunk
>>splunk>>Versions from 10.0.0(inclusive) to 10.0.5(exclusive)
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
Splunk LLC (Cisco Systems, Inc.)
splunk
>>splunk>>Versions from 10.2.0(inclusive) to 10.2.2(exclusive)
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
Splunk LLC (Cisco Systems, Inc.)
splunk
>>splunk_cloud_platform>>Versions from 10.0.2503(inclusive) to 10.0.2503.13(exclusive)
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
Splunk LLC (Cisco Systems, Inc.)
splunk
>>splunk_cloud_platform>>Versions from 10.1.2507(inclusive) to 10.1.2507.21(exclusive)
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
Splunk LLC (Cisco Systems, Inc.)
splunk
>>splunk_cloud_platform>>Versions from 10.2.2510(inclusive) to 10.2.2510.11(exclusive)
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
Splunk LLC (Cisco Systems, Inc.)
splunk
>>splunk_cloud_platform>>Versions from 10.3.2512(inclusive) to 10.3.2512.8(exclusive)
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-532Primarypsirt@cisco.com
CWE ID: CWE-532
Type: Primary
Source: psirt@cisco.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://advisory.splunk.com/advisories/SVD-2026-0503psirt@cisco.com
Vendor Advisory
Hyperlink: https://advisory.splunk.com/advisories/SVD-2026-0503
Source: psirt@cisco.com
Resource:
Vendor Advisory
Change History
0Changes found
Details not found