CVE-2026-72665
Kibana auth bypass allows unauthorized Osquery and Defend actions on enrolled agents
Is CVE-2026-72665 being exploited?
Not confirmed. CVE-2026-72665 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.27% probability of exploitation in the next 30 days.
How severe is CVE-2026-72665?
CVE-2026-72665 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72665?
Yes. A fix has been recorded for CVE-2026-72665. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72665 affect?
CVE-2026-72665 affects Kibana (Elastic Security), Elastic Agent (Osquery integration), Elastic Defend response actions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72665?
Apply vendor patch when released; restrict detection-rule authors; audit agent activity
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
A Kibana user with detection-rule privileges can run Osquery live queries and trigger Elastic Defend response actions on agents, causing data disclosure and unauthorized host changes.
Immediate action required
- affected>= 8.5.0 and <= 8.19.19
- affected>= 9.0.0 and <= 9.4.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.