cve.bz

CVE-2026-78581

4.2 mediumEPSS 0.2%

Medium (4.2) in elastic kibana. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.2 medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS
0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-31)
CWE
CWE-639
Published
Modified
Record from
the NVD, synced

Affected

References

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