# CVE-2026-20239: Sensitive Information Disclosure through Log Files in Splunk Enterprise

> CVE-2026-20239: Sensitive Information Disclosure through Log Files in Splunk Enterprise. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-20239
Last updated: 2026-07-23T12:10:00Z

- Published: 2026-05-20 16:32 UTC · Updated: 2026-07-23 12:10 UTC · Assigner: cisco
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.49%, 41th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-532

## 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.

## Affected vendors and products

- Splunk: Splunk Cloud Platform
- Splunk: Splunk Enterprise

## Tracked companies

- [Splunk](https://rewindex.com/company/splunk.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-20239)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-20239)
- [https://advisory.splunk.com/advisories/SVD-2026-0503](https://advisory.splunk.com/advisories/SVD-2026-0503)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-20239 · Markdown: https://rewindex.com/cve/CVE-2026-20239.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-20239 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:32.660Z