Quick answers
- Is CVE-2026-63137 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-63137 being exploited in the wild.
- How severe is CVE-2026-63137?
- High severity, with a CVSS score of 8.3, published 1 September 2026.
- Which products and versions are affected?
- Elastic Kibana 9.3.0 through 9.4.2.
- Is there a fix for CVE-2026-63137?
- A patch was published on 2026-09-01: Fixed in Kibana 9.4.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-63137 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-63137?
- Check whether you run Elastic Kibana at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This is an incorrect authorization vulnerability (CWE-863) in Kibana's Workflows feature, introduced in version 9.3.0. A user with workflow edit permissions can cause scheduled workflow executions to run under a different, higher-privileged user's context, bypassing access control checks. The vulnerability requires network access and authenticated user credentials, but no additional user interaction. An attacker can exploit this to access and modify data beyond their authorization scope. The issue is fixed in Kibana 9.4.3; no workarounds are available for affected versions.
Affected products
- Elastic Kibana 9.3.0 through 9.4.2
Timeline
- 2026-09-01: disclosed
- 2026-09-01: patched: Fixed in Kibana 9.4.3