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CVE-2026-78595

Missing Authorization in Kibana Fleet Plugin Leading to Cross-Space Agent Data Disclosure

Medium4.3EPSS 0.28%
Published
Updated
Reserved
Assigned by
elastic

Description

Missing Authorization in Kibana Leading to Information Disclosure / Missing Authorization (CWE-862) in the Kibana Fleet feature can lead to information disclosure via Privilege Abuse (CAPEC-122). An authenticated user holding read-level Fleet agent privileges in one Kibana space could enumerate agent metadata and access diagnostic content belonging to agents enrolled in other Kibana spaces.

Scores

CVSS scores of CVE-2026-78595, by who scored it
Scored byCVSSScoreVector
elasticCNA (assigner)3.1Medium4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVDNVD · Awaiting Analysis3.1Medium4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS (exploitation in 30 days)
0.28% · top 80% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

Affected products

  • Elastic · Kibana

    • affected 9.1.0 – ≤ 9.4.5
    • affected 9.5.0 – ≤ 9.5.2

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .