CVE-2023-27533

Name of the Vulnerable Software and Affected Versions curl versions prior to 8.0

Description A vulnerability in input validation exists in curl during communication using the TELNET protocol, which may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform option negotiation without the application's intent. This could be exploited if an application allows user input, thereby enabling attackers to execute arbitrary code on the system.

Recommendations For versions prior to 8.0, update to version 8.0 or later to resolve the issue. As a temporary workaround, consider restricting user input for TELNET protocol negotiations to minimize the risk of exploitation. Avoid using the username and telnet options variables in the affected API endpoint until the issue is resolved. At the moment, there is no other information about additional mitigation measures.