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CVE-2021-22139

MEDIUM
6.5
CVSS Score
Published: May 13, 2021 at 05:35 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
1 product affected across 1 vendorKibana

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1.0%

Description

Kibana versions before 7.12.1 contain a denial of service vulnerability was found in the webhook actions due to a lack of timeout or a limit on the request size. An attacker with permissions to create webhook actions could drain the Kibana host connection pool, making Kibana unavailable for all other users.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Kibana· Elasticsearch
95%
v < 7.12.1
Affected range stops below 7.12.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://discuss.elastic.co/t/7-12-1-security-update/271433

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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