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CVE-2026-78583

high

Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153).

Vendor / product: Elastic — kibana

Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration.

CVSS
8.1
8.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Severity source: NVD CVSS v3.1 (security@elastic.co)
Timeline (UTC)
Published: 2026-09-03 19:17
Modified: 2026-09-08 16:48
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

elastic / kibana ≥8.0.0 <8.19.21, ≥9.0.0 <9.4.6, ≥9.5.0 <9.5.3

Weakness classification (CWE)

CWE-863

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158
Patch / mitigation: https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗

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