Sensitive Information Disclosure through Log Files in Splunk Enterprise
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.
- Published
- May 20, 2026
- Updated
- Jul 23, 2026
- EPSS
- 0.5% · 39th percentile
- CWE
- CWE-532
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 6.5
- CNA · cisco
- 7.5
- 1.0 point gap
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| splunk | splunk | cpe:2.3:a:splunk:splunk |
| splunk | splunk cloud platform | cpe:2.3:a:splunk:splunk_cloud_platform |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- splunk splunk10.0.0 and later · before 10.0.5
- splunk splunk10.2.0 and later · before 10.2.2
- splunk splunk cloud platform10.0.2503 and later · before 10.0.2503.13
- splunk splunk cloud platform10.1.2507 and later · before 10.1.2507.21
- splunk splunk cloud platform10.2.2510 and later · before 10.2.2510.11
- splunk splunk cloud platform10.3.2512 and later · before 10.3.2512.8
Versions reported by the vendor
Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.
Splunk Splunk Cloud Platform
- 10.3.2512 and later · before 10.3.2512.8affected
- 10.2.2510 and later · before 10.2.2510.11affected
- 10.1.2507 and later · before 10.1.2507.21affected
- 10.0.2503 and later · before 10.0.2503.13affected
Splunk Splunk Enterprise
- 10.2 and later · before 10.2.2affected
- 10.0 and later · before 10.0.5affected
Same product
splunk: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-20253Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk EnterpriseKEV98Now
- CVE-2023-32707‘edit_user’ Capability Privilege Escalation59Plan
- CVE-2018-11409Splunk through 7.0.1 allows information disclosure by appending __raw/services/server/info/server-info?output_mode=json to a query, as demon50Plan
- CVE-2026-20251Remote Code Execution through Deserialization of Untrusted Data in Splunk Secure Gateway45Plan
- CVE-2023-32714Path Traversal in Splunk App for Lookup File Editing45Plan
- CVE-2022-32158Splunk Enterprise deployment servers allow client publishing of forwarder bundles40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-2016570 days apartSensitive Information Disclosure in MongoClient logging channel in Splunk Enterprise26Monitor
- CVE-2025-20231420 days apartSensitive Information Disclosure in Splunk Secure Gateway App22Monitor
- CVE-2026-2013891 days apartSensitive Information Disclosure in "_internal" index in Splunk Enterprise19Monitor
- CVE-2026-2014291 days apartSensitive Information Disclosure in "_internal" index in Splunk Enterprise19Monitor
- CVE-2026-2014491 days apartSensitive Information Disclosure in ''_internal'' index in Splunk Enterprise19Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-532 · Insertion of Sensitive Information into Log FileCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.