Transmission through 2.92 relies on X-Transmission-Session-Id (which is not a forbidden header for Fetch) for access control, which allows remote attackers to execute arbitrary RPC commands, and consequently write to arbitrary files, via POST requests to /transmission/rpc in conjunction with a DNS rebinding attack.

Multiple stack-based buffer overflows in the trmagnetParse function in libtransmission/magnet.c in Transmission 1.91 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted magnet URL with a large number of (1) tr or (2) ws links.

Cross-site request forgery (CSRF) vulnerability in Transmission 1.5 before 1.53 and 1.6 before 1.61 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.

Transmission before 1.92 allows an attacker to cause a denial of service (crash) or possibly have other unspecified impact via a large number of tr arguments in a magnet link.

Transmission before 1.92 allows attackers to prevent download of a file by corrupted data during the endgame.