# CVE-2026-76261: Insecure Default Access Control List through the REST API in Splunk Secure Gateway

> CVE-2026-76261: Insecure Default Access Control List through the REST API in Splunk Secure Gateway. CVSS 5.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-76261
Last updated: 2026-08-26T20:18:00Z

- Published: 2026-08-19 21:34 UTC · Updated: 2026-08-26 20:18 UTC · Assigner: cisco
- CVSS: 5.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS: 0.29%, 21th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-732

## Description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could read Spacebridge asymmetric private keys, which are secrets that compromise affected Spacebridge private-key material stored in the app collection, through the Splunk Secure Gateway App Key Value Store Representational State Transfer (REST) API. The vulnerability is possible on instances upgraded from older Splunk Secure Gateway deployments when the private-key migration remains incomplete, leaving key material in a collection with an insecure default access control list.

## Affected vendors and products

- Splunk: Splunk Enterprise
- Splunk: Splunk Secure Gateway

## Tracked companies

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

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-76261)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-76261)
- [https://advisory.splunk.com/advisories/SVD-2026-0801](https://advisory.splunk.com/advisories/SVD-2026-0801)

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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-2026-76261 · Markdown: https://rewindex.com/cve/CVE-2026-76261.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-76261 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:05:20.484Z