{"cve":"CVE-2015-9097","nvd":{"published":"2017-06-12T20:29:00.237","modified":"2026-06-17T00:35:48.177","status":"Modified","description":"The mail gem before 2.5.5 for Ruby (aka A Really Ruby Mail Library) is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-93"],"references":["http://openwall.com/lists/oss-security/2015/12/11/3","http://www.mbsd.jp/Whitepaper/smtpi.pdf","https://github.com/mikel/mail/commit/72befdc4dab3e6e288ce226a7da2aa474cf5be83","https://github.com/mikel/mail/pull/1097","https://github.com/rubysec/ruby-advisory-db/issues/215"],"products":["mail_project:mail"],"source":"nvd","synced_at":"2026-10-19T20:43:44.556243339+00:00"},"epss":{"cve":"CVE-2015-9097","score":0.03396,"percentile":0.8883,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-q86f-fmqf-qrf6","url":"https://osv.dev/vulnerability/GHSA-q86f-fmqf-qrf6","summary":"Mail Gem CRLF Injection vulnerability","modified":"2024-02-16T08:18:19.574996Z","packages":[{"ecosystem":"RubyGems","name":"mail","purl":"pkg:gem/mail","ranges":["<2.5.5"],"fixed":["2.5.5"]}]}],"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."]}