The festivaltts4r gem for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a string to the (1) to_speech or (2) to_mp3 method in lib/festivaltts4r/festival4r.rb.
https://github.com/spejman/festivaltts4r/issues/1
http://www.openwall.com/lists/oss-security/2017/02/02/5
http://www.openwall.com/lists/oss-security/2017/01/31/14
Source: Mitre, NVD
Published: 2017-03-03
Updated: 2026-05-13
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.0158