CVE-2015-1820: Rest-Client Project Rest-Client

Critical severity, CVSS 9.8. EPSS: 4.3% chance of exploitation in the next 30 days.

REST client for Ruby (aka rest-client) before 1.8.0 allows remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage of cookies set in a response to a redirect.

Affected products

• Rest-Client Project Rest-Client: up to and including 1.7.3

Published 2017-08-09. Last modified 2026-06-17.