CVE-2026-49089CWE-770denial-of-service

CVE-2026-49089

Medium · published August 14, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
39.8
In the wild
Unconfirmed
What it is

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A query expression accepted by a connector reporting operation was processed without any limit on its size, and an oversized expression caused the Kibana process to spend an unbounded amount of time evaluating it. An authenticated user with read-only privileges was able to send a single request that left Kibana unable to serve any user until the process was restarted.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00472 · 39.8th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-08-14T00:17Z
Affected products (2)
ProductVersionsFixed in
elastic/kibana≥ 8.0.0, < 8.19.208.19.20
elastic/kibana≥ 9.0.0, < 9.4.59.4.5
References (1)
https://discuss.elastic.co/t/kibana-8-19-20-9-4-5-security-update-esa-2026-137/389511 · [email protected]
EPSS history
Timeline
  • 13 AUG 19:08Z
    Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service
    cvelistv5