CVE-2021-44659

Name: CVE-2021-44659
Creator: NVD / NIST
Published: 2021-12-22T18:15:08.013+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.52%

Last modified Jun 17, 2026

CVE-2021-44659 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Adding a new pipeline in GoCD server version 21.3.0 has a functionality that could be abused to do an un-intended action in order to achieve a Server Side Request Forgery (SSRF). NOTE: the vendor's position is that the observed behavior is not a vulnerability, because the product's design allows an admin to configure outbound requests. EPSS estimates a 2.52% chance of exploitation in the next 30 days.

Description

Adding a new pipeline in GoCD server version 21.3.0 has a functionality that could be abused to do an un-intended action in order to achieve a Server Side Request Forgery (SSRF). NOTE: the vendor's position is that the observed behavior is not a vulnerability, because the product's design allows an admin to configure outbound requests

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.52%

82.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Thoughtworks	Gocd	21.3.0

References

https://github.com/Mesh3l911/CVE-2021-44659Broken Link, Exploit, Third Party Advisory
https://github.com/gocd/gocdProduct, Third Party Advisory
https://www.gocd.org/Product, Vendor Advisory
https://youtu.be/WW_a3znugl0Exploit, Third Party Advisory
https://github.com/Mesh3l911/CVE-2021-44659Broken Link, Exploit, Third Party Advisory
https://github.com/gocd/gocdProduct, Third Party Advisory
https://www.gocd.org/Product, Vendor Advisory
https://youtu.be/WW_a3znugl0Exploit, Third Party Advisory

Timeline

Published: Dec 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44659?

How severe is CVE-2021-44659?

CVE-2021-44659 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.52% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44659?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44659?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST