CVE-2026-72631: Improper Privilege Management in Kibana Fleet Leading to Over-Scoped Elastic Agent API Keys
Improper Privilege Management (CWE-269) in Kibana Fleet can lead to privilege escalation via Privilege Escalation (CAPEC-233). An integration policy may optionally declare extra data streams that the integration writes to, which Fleet adds to the Elasticsearch API key issued to Elastic Agents enrolled in the corresponding agent policy. The resulting key allows new documents to be inserted and index mappings to be extended for specific indices. The key does not allow reading, updating, or deleting existing documents
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-72631?
CVE-2026-72631 has a medium severity rating of 6.5.
How do I fix CVE-2026-72631?
To remediate CVE-2026-72631, ensure that proper privilege management is enforced in Kibana Fleet to avoid over-scoping Elastic Agent API keys.
What are the potential impacts of CVE-2026-72631?
CVE-2026-72631 can lead to privilege escalation within Kibana Fleet, allowing unauthorized access to resources.
Is there a workaround for CVE-2026-72631?
Currently, the recommended mitigation for CVE-2026-72631 involves implementing strict control over the integration policies in Kibana.
What type of vulnerability is CVE-2026-72631?
CVE-2026-72631 is classified as an Improper Privilege Management vulnerability.