# CVE-2026-76290: Denial of Service (DoS) through Unauthenticated Package Downloads over the REST API in Splunk Enterprise

> CVE-2026-76290: Denial of Service (DoS) through Unauthenticated Package Downloads over the REST API in Splunk Enterprise. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-76290
Last updated: 2026-10-22T16:57:10Z

- Published: 2026-10-21 22:51 UTC · Updated: 2026-10-22 16:57 UTC · Assigner: cisco
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.50%, 42th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-400

## Description

In Splunk Enterprise versions below 10.4.4, 10.2.8, and 10.0.11, an unauthenticated user could send repeated requests to the Edge Processor package download endpoint in the Splunk Pipeline Builders app. The requests could cause the Splunk daemon to consume excessive system resources and potentially stop responding. The vulnerability is possible because the endpoint accepts package download requests without authentication and reads and base64-encodes the complete package in memory for each request. After upgrading, prepare all existing Edge Processor instances, turn on authentication for Edge Processor package downloads, and restart Splunk Enterprise. For more information, see Enable authentication for Edge Processor package downloads (https://help.splunk.com/en/data-management/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/administer-edge-processors/enable-authentication-for-edge-processor-package-downloads).

## Affected vendors and products

- 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-2026-76290)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-76290)
- [https://advisory.splunk.com/advisories/SVD-2026-1007](https://advisory.splunk.com/advisories/SVD-2026-1007)

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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-2026-76290 · Markdown: https://rewindex.com/cve/CVE-2026-76290.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-76290 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:41.144Z