An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames to break the maximum concurrent streams limit (HTTP/2 MadeYouReset Attack).

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.