CVE-2026-26935 — Improper Input Validation in Kibana

CWE-20 — Improper Input Validation4 documents4 sources
Severity
7.5HIGHNVD
CNA6.5
EPSS
0.1%
top 75.38%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Elastic Kibana
Timeline
PublishedFeb 26

Description

Improper Input Validation (CWE-20) in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDelastic/kibana8.4.0 — 8.19.12+2
▶CVEListV5elastic/kibana9.3.0 — 9.3.0+2

🔴Vulnerability Details

2
GHSA
GHSA-5rmp-wvrc-g6g5: Improper Input Validation (CWE-20) in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation↗2026-02-26
▶
CVEList
Improper Input Validation in Kibana Leading to Denial of Service↗2026-02-26
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-26935 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-26935 — Improper Input Validation in Elastic | cvebase