# CVE-2026-20265: Insecure Default Domain Allowlist in Splunk AI Toolkit

> CVE-2026-20265: Insecure Default Domain Allowlist in Splunk AI Toolkit. CVSS 4.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-20265
Last updated: 2026-06-22T12:46:06Z

- Published: 2026-06-17 17:07 UTC · Updated: 2026-06-22 12:46 UTC · Assigner: cisco
- CVSS: 4.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS: 0.22%, 12th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-1188

## Description

In Splunk AI Toolkit versions below 5.7.4, a low-privileged user that does not hold the "admin" or "power" Splunk roles could cause the Splunk AI Toolkit to make outbound requests over HTTP to a server that an attacker controls, which could allow for data exfiltration.   The vulnerability exists because of an insecure default domain allowlist in the Splunk AI Toolkit, which does not restrict outbound AI agent  requests to approved external domains.

## Affected vendors and products

- Splunk: Splunk AI Toolkit

## Tracked companies

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

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-20265)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-20265)
- [https://advisory.splunk.com/advisories/SVD-2026-0613](https://advisory.splunk.com/advisories/SVD-2026-0613)

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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-2026-20265 · Markdown: https://rewindex.com/cve/CVE-2026-20265.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-20265 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:11:25.404Z