CVE-2026-20239
May 21, 2026, 7:42 p.m.
7.5
High
Description
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Splunk |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-532
Insertion of Sensitive Information into Log File
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | splunk | splunk | / | / | / | / | enterprise | / | / | / |
| a | splunk | splunk | / | / | / | / | enterprise | / | / | / |
| a | splunk | splunk_cloud_platform | / | / | / | / | / | / | / | / |
| a | splunk | splunk_cloud_platform | / | / | / | / | / | / | / | / |
| a | splunk | splunk_cloud_platform | / | / | / | / | / | / | / | / |
| a | splunk | splunk_cloud_platform | / | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: HIGH
- Privileges Required: LOW
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: HIGH
- Availability Impact: HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Timeline
Published: May 20, 2026, 6:16 p.m.
Last Modified: May 21, 2026, 7:42 p.m.
Last Modified: May 21, 2026, 7:42 p.m.
Status : Analyzed
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.