Is CVE-2026-20265 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-20265 being exploited in the wild.

How severe is CVE-2026-20265?

Medium severity, with a CVSS score of 4.3, published 17 June 2026.

Is there a fix for CVE-2026-20265?

A patch was published on 2026-06-17. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-20265 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-20265?

Check whether you run Splunk AI Toolkit at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-20265: Splunk AI Toolkit insecure default domain allowlist

CVE-2026-20265 · Severity: medium · CVSS 4.3 · Published 2026-06-17

The Splunk AI Toolkit, an extension used for machine learning and AI operations, contains a security flaw that allows users with limited permissions to bypass network restrictions. An attacker could exploit this to force the toolkit to send data to an external server they control, potentially leading to the theft of sensitive information. Organizations should update to version 5.7.4 or manually configure domain restrictions to prevent unauthorized data transfers.

Technologies: Splunk AI Toolkit. Vendors: Splunk.

Quick answers

Is CVE-2026-20265 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-20265 being exploited in the wild.
How severe is CVE-2026-20265?: Medium severity, with a CVSS score of 4.3, published 17 June 2026.
Which products and versions are affected?: Splunk AI Toolkit < 5.7.4.
Is there a fix for CVE-2026-20265?: A patch was published on 2026-06-17. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-20265 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-20265?: Check whether you run Splunk AI Toolkit at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Server-Side Request Forgery (SSRF) vulnerability exists in the Splunk AI Toolkit due to an insecure default domain allowlist (CWE-1188). The toolkit's AI agent requests do not properly restrict outbound HTTP connections to approved external domains by default. A remote attacker with low-privileged access (non-admin/power roles) can trigger outbound requests to an arbitrary attacker-controlled server. This can be used to exfiltrate data from the Splunk environment. The issue is resolved in version 5.7.4, or can be mitigated by explicitly defining allowed domains in the mlspl.conf configuration file.

Affected products

Splunk AI Toolkit < 5.7.4

Timeline

2026-06-17: disclosed
2026-06-17: advisory
2026-06-17: patched

References

https://advisory.splunk.com/advisories/SVD-2026-0613

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