CVE-2021-21363

CVE-2021-21363 is a local privilege escalation vulnerability affecting swagger-codegen versions prior to 2.4.19. On Unix-like systems, an attacker can exploit a race condition during the creation of temporary subdirectories in the shared system temporary directory, allowing them to append malicious code to the outputFolder. This vulnerability carries a high CVSS score of 7.0 due to its potential for high impact on confidentiality, integrity, and availability, despite requiring low privileges and high attack complexity. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.