{"cve":"CVE-2015-1820","nvd":{"published":"2017-08-09T18:29:00.903","modified":"2026-06-17T00:23:04.020","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-384"],"references":["http://www.openwall.com/lists/oss-security/2015/03/24/3","http://www.securityfocus.com/bid/73295","https://bugzilla.redhat.com/show_bug.cgi?id=1205291","https://github.com/rest-client/rest-client/issues/369","http://www.openwall.com/lists/oss-security/2015/03/24/3"],"products":["rest-client_project:rest-client"],"source":"nvd","synced_at":"2026-10-19T20:44:47.710380879+00:00"},"epss":{"cve":"CVE-2015-1820","score":0.04345,"percentile":0.9122,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-3fhf-6939-qg8p","url":"https://osv.dev/vulnerability/GHSA-3fhf-6939-qg8p","summary":"rest-client Gem Vulnerable to Session Fixation","modified":"2024-02-16T08:15:39.725364Z","packages":[{"ecosystem":"RubyGems","name":"rest-client","purl":"pkg:gem/rest-client","ranges":[">=1.6.1.a <1.8.0"],"fixed":["1.8.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}