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CVE-2026-20239

Sensitive Information Disclosure through Log Files in Splunk Enterprise

Published: May 20, 2026Updated: May 21, 2026 Sources: CVE List NVDCWE-532
7.5HIGH
NVD MITRE
EPSS Score
0.5%
Top 61.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-532

Affected Products

Splunk
commercial·USaka splunk enterprise, splunk cloud platform
splunk
Security Products
Splunk Cloud Platform
Security Products
Splunk Enterprise
Security Products
and 1 more affected products View all →

Exploitability

Official Patch Available
Scannable·OpenVAS
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://advisory.splunk.com/advisories/SVD-2026-0503
advisory.splunk.com
News mentions
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