cgit_clone_objects in CGit before 1.2.1 has a directory traversal vulnerability when `enable-http-clone=1` is not turned off, as demonstrated by a cgit/cgit.cgi/git/objects/?path=../ request.

CRLF injection vulnerability in the cgit_print_http_headers function in ui-shared.c in CGit before 0.12 allows remote attackers with permission to write to a repository to inject arbitrary HTTP headers and conduct HTTP response splitting attacks or cross-site scripting (XSS) attacks via newline characters in a filename.

Integer overflow in the authenticate_post function in CGit before 0.12 allows remote attackers to have unspecified impact via a large value in the Content-Length HTTP header, which triggers a buffer overflow.

CRLF injection vulnerability in the ui-blob handler in CGit before 0.12 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks or cross-site scripting (XSS) attacks via CRLF sequences in the mimetype parameter, as demonstrated by a request to blob/cgit.c.

Directory traversal vulnerability in the cgit_parse_readme function in ui-summary.c in cgit before 0.9.2, when a readme file is set to a filesystem path, allows remote attackers to read arbitrary files via a .. (dot dot) in the url parameter.

Argument injection vulnerability in syntax-highlighting.sh in cgit 9.0.3 and earlier allows remote authenticated users with permissions to add files to execute arbitrary commands via the --plug-in argument to the highlight command.

Heap-based buffer overflow in the substr function in parsing.c in cgit 0.9.0.3 and earlier allows remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via an empty username in the "Author" field in a commit.

Cross-site scripting (XSS) vulnerability in the print_fileinfo function in ui-diff.c in cgit 0.9.0.2 and earlier allows remote authenticated users to inject arbitrary web script or HTML via the filename associated with the rename hint.

Off-by-one error in the convert_query_hexchar function in html.c in cgit.cgi in cgit before 0.8.3.5 allows remote attackers to cause a denial of service (infinite loop) via a string composed of a % (percent) character followed by invalid hex characters, as demonstrated by a %gg sequence.