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Medium 4.3Published Sep 3, 2026

CVE-2026-78596Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations

Updated under an hour ago ()

Does this affect you?

It affects Elastic Kibana. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthorized modification of data via Privilege Abuse (CAPEC-122). An authenticated user holding Security read-level access in a single Kibana space could trigger Entity Analytics migration operations that perform privileged writes across all Kibana spaces, regardless of that user's actual access scope.

CVSS
4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-862
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
elastic
NVD analysis
Awaiting Analysis
Record last updated
Sep 3, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Elastic Kibana
elastic:kibana (from the name)
from 8.18.3 through 8.19.20; from 9.0.3 through 9.4.5; from 9.5.0 through 9.5.2
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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