CVE-2026-78583

Summary

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.

Affected Software

VendorProductVersion RangeStatus
ElasticKibana8.0.0 <= 8.19.20affected
ElasticKibana9.0.0 <= 9.4.5affected
ElasticKibana9.5.0 <= 9.5.2affected

Weaknesses

  • CWE-863: CWE-863 Incorrect Authorization

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References