MEDIUM 4.2 NVD

CVE-2026-78581

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized data modification via Accessing Functionality Not Properly Constra

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized data modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Under certain conditions, an authenticated user could reference another user's AI Assistant conversation identifier to access or modify a conversation they do not own. Successful exploitation requires knowledge of a hard-to-guess identifier.

References

https://discuss.elastic.co/t/kibana-8-16-3-8-17-2-security-update-esa-2026-51/387446

Published: 2026-08-25 · Source: NVD · Feed updated: 2026-08-25

This medium severity vulnerability with a CVSS score of 4.2 was published on 2026-08-25 via NVD.

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