HIGHCVSS v3.1 8.8Vulnerability
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.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-10-26T23:20:21.485325+00:00
- Cvss severity
- HIGH
- Cvss score
- 8.8
- Retrieved at
- 2026-10-26T23:21:23+00:00
- Score
- 8.8
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-116748
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-10-26T23:13:25+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published at
- 2026-10-26T22:16:59.610
- Last modified
- 2026-10-26T22:16:59.610
Related Entities (1)
HAS_WEAKNESS (1)
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