CVE-2011-0739 json
Mail Improper Input Validation vulnerability
published 2011-02-02 15 y ago modified 2026-06-16 4 mo ago also GHSA-cpjc-p7fc-j9xh , EUVD-2017-0220
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.7%
- EPSS 2.7% chance of exploitation in 30 days, percentile 86%
- public exploits
- 0
- none known
Summary
The deliver function in the sendmail delivery agent (lib/mail/network/delivery_methods/sendmail.rb) in Ruby Mail gem 2.2.14 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an e-mail address.
Patch / fix
Exploit prediction
2.71% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | <2.2.15 |
2.2.15 |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
groups.google.com
/group/mail-ruby/browse_thread/thread/e93bbd05706478dd?pli=1
web, patch
-
github.com
/mikel/mail/raw/master/patches/20110126_sendmail.patch
web, patch
-
vupen.com
/english/advisories/2011/0233
vdb-entry, vendor-advisory
-
secunia.com
/advisories/43077
third-party-advisory, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/65010
vdb-entry, web
-
securityfocus.com
/bid/46021
vdb-entry
-
osvdb.org
/70667
vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2011-0739
advisory
-
github.com
/mikel/mail
package
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/mail/CVE-2011-0739.yml
web
-
web.archive.org
/web/20200228225346/http://www.securityfocus.com/bid/46021
web
Sources
- CVE List CVE-2011-0739
- GitHub Advisory GHSA-cpjc-p7fc-j9xh
- NVD CVE-2011-0739
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.