CVE-2018-5702: Debian Linux

High severity, CVSS 8.8. EPSS: 11.9% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 only
• Transmissionbt Transmission: up to and including 2.92

Published 2018-01-15. Last modified 2026-06-17.