CVE-2017-17459: Fossil Scm Fossil

High severity, CVSS 8.8. EPSS: 2.8% chance of exploitation in the next 30 days.

http_transport.c in Fossil before 2.4, when the SSH sync protocol is used, allows user-assisted remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in the hostname, a related issue to CVE-2017-9800, CVE-2017-12836, CVE-2017-12976, CVE-2017-14176, CVE-2017-16228, CVE-2017-1000116, and CVE-2017-1000117.

Affected products

• Fossil Scm Fossil: before 2.4 (fixed in 2.4)

Published 2017-12-07. Last modified 2026-06-17.