CVE-2021-22150

6.6 MEDIUM 1% exploit odds Fix listed

What it is

It was discovered that a user with Fleet admin permissions could upload a malicious package. Due to using an older version of the js-yaml library, this package would be loaded in an insecure manner, allowing an attacker to execute commands on the Kibana server.

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 1.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2023-11-22 01:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:36 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.2% in the next 30 days (EPSS).
Severity: 6.6 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2023-11-22 01:15 UTC
Last modified: 2026-06-17 03:36 UTC
Exploit probability: 1.2% · EPSS, next 30 days
Weakness: CWE-94 · Code injection
Record status: Modified

Affected

Elastic Kibana < 7.14.1

Attack profile CVSS 3.1 · 6.6

Attack vector: Network
Complexity: High
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-22150.md and follow it. Check whether this project is affected by CVE-2021-22150. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record