How severe is CVE-2026-20265?

CVE-2026-20265 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-20265 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-20265?

CVE-2026-20265 affects Splunk Ai Toolkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-20265?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-20265 have an EU (EUVD) identifier?

Yes. CVE-2026-20265 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37767.

When was CVE-2026-20265 published?

CVE-2026-20265 was published on 2026-06-17 and last updated on 2026-06-22.

CVE-2026-20265

CVE-2026-20265 is a medium-severity vulnerability in Splunk Ai Toolkit with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1188.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37767
Weakness: CWE-1188
Affected product: Splunk Ai Toolkit
Published: 2026-06-17
Last modified: 2026-06-22

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.

Frequently asked questions

What is CVE-2026-20265?: 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.
How severe is CVE-2026-20265?: CVE-2026-20265 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-20265 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-20265?: CVE-2026-20265 affects Splunk Ai Toolkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-20265?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-20265 have an EU (EUVD) identifier?: Yes. CVE-2026-20265 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37767.
When was CVE-2026-20265 published?: CVE-2026-20265 was published on 2026-06-17 and last updated on 2026-06-22.

References

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

Affected products (1)

cpe:2.3:a:splunk:ai_toolkit:*:*:*:*:*:*:*:*

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