High severity · published Aug 13, 2026
CVE-2026-72669
Missing Authorization in Kibana Leading to Cross-User Information Disclosure and Data Tampering
7.6
CVSS
0.3%
EPSS
No
On KEV
Description
The state that Kibana stores for an Observability Onboarding flow is not bound to the user who created the flow, and the routes that read and update that state do not verify ownership. An authenticated user who holds only generic read access to the space can therefore discover the onboarding flows of other users, read their onboarding state, and write arbitrary progress data into them. A tampered flow can also cause the owner's onboarding view to fail with a server error.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kibana · Elastic
8.9.0 through 8.19.18; 9.0.0 through 9.4.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72669
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72669
Vendor Advisory
https://discuss.elastic.co/t/kibana-8-19-19-and-9-4-5-security-update-esa-2026-86/389515
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