CVE-2026-76370Network attack vector

Cross-tenant identifier disclosure via missing REST authorization

Published Aug 19, 2026 · Updated Aug 20, 2026

Incorrect authorization in Splunk SOAR before 8.6.0 allows remote authenticated users to view out-of-scope tenant names and identifiers. With multi-tenancy enabled, the REST API returns tenant information without enforcing the requesting user's role-based tenant restrictions. Access requires a valid account assigned restricted tenant access; exposure is limited to names and identifiers of other tenants, with no reported data modification or service interruption.

CVSS severity4.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Splunk SOAR before 8.6.0 allows remote authenticated users to view out-of-scope tenant names and identifiers. With multi-tenancy enabled, the REST API returns tenant information without enforcing the requesting user's role-based tenant restrictions. Access requires a valid account assigned restricted tenant access; exposure is limited to names and identifiers of other tenants, with no reported data modification or service interruption.

The record

CVE
CVE-2026-76370
Published
Aug 19, 2026
Updated
Aug 20, 2026
Vendor
Splunk, Inc.
Product
Splunk SOAR
Classifications
CWE-863
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.6 <8.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Splunk, Inc. · Splunk SOARversion=8.6 <8.6.0

Published CVSS scores

4.3SplunkCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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