Azure DevOps Server Remote Code Execution Vulnerability

According to the CVSS metric, the attack vector is network (AV:N), attack complexity is high (AC:H), and privilege required is low (PR:L). What is the target used in the context of the remote code execution?
Successful exploitation of this vulnerability requires the attacker to have Queue Build permissions and for the target Azure DevOps pipeline to meet certain conditions for an attacker to exploit this vulnerability.

Security updates
20240126.4 — https://learn.microsoft.com/en-us/azure/devops/server/release-notes/azuredevops2022?view=azure-devops
20240126.6 — https://learn.microsoft.com/en-us/azure/devops/server/release-notes/azuredevops2019u1?view=azure-devops
20240126.2 — https://learn.microsoft.com/en-us/azure/devops/server/release-notes/azuredevops2020u1?view=azure-devops