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Vulnerability details: VCID-rx5h-wqs5-3ybg
Vulnerability ID VCID-rx5h-wqs5-3ybg
Aliases CVE-2011-0739
GHSA-cpjc-p7fc-j9xh
OSV-70667
Summary Improper Input Validation The deliver function in the sendmail delivery agent (lib/mail/network/delivery_methods/sendmail.rb) in Ruby Mail gem allows remote attackers to execute arbitrary commands via shell metacharacters in an e-mail address.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-20 Improper Input Validation
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
generic_textual MODERATE http://groups.google.com/group/mail-ruby/browse_thread/thread/e93bbd05706478dd?pli=1
epss 0.00749 https://api.first.org/data/v1/epss?cve=CVE-2011-0739
epss 0.00749 https://api.first.org/data/v1/epss?cve=CVE-2011-0739
generic_textual MODERATE https://exchange.xforce.ibmcloud.com/vulnerabilities/65010
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-cpjc-p7fc-j9xh
generic_textual MODERATE https://github.com/mikel/mail
generic_textual MODERATE https://github.com/mikel/mail/raw/master/patches/20110126_sendmail.patch
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/mail/CVE-2011-0739.yml
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2011-0739
generic_textual MODERATE https://web.archive.org/web/20200228225346/http://www.securityfocus.com/bid/46021
Reference id Reference type URL
http://groups.google.com/group/mail-ruby/browse_thread/thread/e93bbd05706478dd?pli=1
https://api.first.org/data/v1/epss?cve=CVE-2011-0739
https://exchange.xforce.ibmcloud.com/vulnerabilities/65010
https://github.com/mikel/mail
https://github.com/mikel/mail/raw/master/patches/20110126_sendmail.patch
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/mail/CVE-2011-0739.yml
https://web.archive.org/web/20200228225346/http://www.securityfocus.com/bid/46021
CVE-2011-0739 https://nvd.nist.gov/vuln/detail/CVE-2011-0739
GHSA-cpjc-p7fc-j9xh https://github.com/advisories/GHSA-cpjc-p7fc-j9xh
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.73474
EPSS Score 0.00749
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:36:04.083773+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/gem/mail/CVE-2011-0739.yml 38.6.0