🛡️ CVE-2026-63139 — elk

🟡 CVSS 5.0 — Medium ✅ No Known Exploit OSV
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated low-privileged user can exploit an uncontrolled resource consumption vulnerability in Kibana's Canvas functionality by sending a specially crafted request, causing the Kibana server process to terminate and resulting in a denial of service for all users of the affected Kibana instance.

Affected software

CVE-2026-63139 is recorded against 2 packages.

  • elk
  • kibana

Timeline and source

Published on 28 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

discuss.elastic.co (Web)
nvd.nist.gov (Web)

Details

Severity MEDIUM
CVSS Score 5.0
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-07-28
Updated 2026-08-12
Modified 2026-07-28
Fix URL N/A

Affected Packages

Software From version Fixed in
elk — —
kibana — —

Similar Threats

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