CVE-2026-116748 | Transmission 4.0.0 before 4.1.3 contains a permissive CORS vulnerability in handle_request() in rpc-server.cc that exposes the X-Transmission-Session-Id anti-CSRF token to any web origin. Malicious web pages can read the token from the 409 handshake response and replay it to issue RPC calls, enabling script-torrent-done execution, download-dir changes, or torrent and data deletion.
Transmission 4.0.0 before 4.1.3 contains a permissive CORS vulnerability in handle_request() in rpc-server.cc that exposes the X-Transmission-Session-Id anti-CSRF token to any web origin. Malicious web pages can read the token from the 409 handshake response and replay it to issue RPC calls, enabling script-torrent-done execution, download-dir changes, or torrent and data deletion.
- 🔗 github.com/transmission/transmission/pull/8938
- 🔗 github.com/transmission/transmission/commit/c6a1bd20…
- 🔗 github.com/transmission/transmission
- 🔗 github.com/transmission/transmission/releases/tag/4.…
- 🔗 github.com/transmission/transmission/blob/4.1.2/libt…
- 🔗 joshua.hu/transmission-cors-rpc-csrf-rce-drive-by-e…
- 🔗 www.vulncheck.com/advisories/transmission-4.0.0-before-4.1.…
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📊 Historien-Charts — Criticals-Trend · Vendors · EPSS-Verteilung
| Tier | CVEs | Anteil |
|---|---|---|
| ≥90 % | 738 | 0,2 % |
| ≥50 % | 3.223 | 0,8 % |
| ≥10 % | 22.095 | 5,8 % |
| <10 % | 354.673 | 93,2 % |
CVE-2026-116748 | Transmission 4.0.0 before 4.1.3 contains a permissive CORS vulnerability in handle_request() in rpc-server.cc that exposes the X-Transmission-Session-Id anti-CSRF token to any web origin. Malicious web pages can read the token from the 409 handshake response and replay it to issue RPC calls, enabling script-torrent-done execution, download-dir changes, or torrent and data deletion.
Transmission 4.0.0 before 4.1.3 contains a permissive CORS vulnerability in handle_request() in rpc-server.cc that exposes the X-Transmission-Session-Id anti-CSRF token to any web origin. Malicious web pages can read the token from the 409