CVE-2026-78591CWE-22path-traversal

CVE-2026-78591

Medium · published September 2, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
28.6
In the wild
Unconfirmed
What it is

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorized deletion of resources via Path Traversal (CAPEC-126). A low-privileged user could cause a subsequent action taken by a higher-privileged user in the Fleet administration interface to act on an unintended target, resulting in the deletion of resources including accounts with elevated privileges.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00360 · 28.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-09-02T19:17Z
Affected products (3)
ProductVersionsFixed in
elastic/kibana≥ 8.0.0, < 8.19.178.19.17
elastic/kibana≥ 9.0.0, < 9.3.69.3.6
elastic/kibana≥ 9.4.0, < 9.4.39.4.3
References (1)
https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-159/390114 · [email protected]
EPSS history
Timeline
  • 04 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 02 SEP 14:43Z
    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Kibana Leading to Unauthorized Resource Deletion
    cvelistv5