emitters.py in Django Piston before 0.2.3 and 0.2.x before 0.2.2.1 does not properly deserialize YAML data, which allows remote attackers to execute arbitrary Python code via vectors related to the yaml.load method.
https://github.com/advisories/GHSA-pvhp-v9qp-xf5r
https://www.djangoproject.com/weblog/2011/nov/01/piston-and-tastypie-security-releases/
https://bugzilla.redhat.com/show_bug.cgi?id=750658
https://bitbucket.org/jespern/django-piston/commits/91bdaec89543/
Published: 2014-10-27
Updated: 2026-06-16
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
Base Score: 9.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: Critical
EPSS: 0.00715