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CVE-2011-4103

25
FAUCET Score

CVE-2011-4103 describes a critical vulnerability in Django Piston versions prior to 0.2.3 and 0.2.x before 0.2.2.1, where the emitters.py module improperly deserializes YAML data. This flaw allows remote attackers to execute arbitrary Python code by exploiting weaknesses in the yaml.load method. With a CVSS score of 7.5, this vulnerability presents a high risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. While no active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB) has been identified, and community discussion is minimal, the inherent danger of remote code execution warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.2.2.0CPE matchmatch criteria
cpe:2.3:a:djangoproject:piston:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.43%
Probability of exploitation in next 30 days
EPSS Percentile
82.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0243 is in the 69th percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: django-pistonFixed in: 0.2.2.1

Vendor Advisories (1)

pipGHSA-pvhp-v9qp-xf5rcritical

Django-piston and Django-tastypie do not properly deserialize YAML data

Jul 23, 2018

References

bitbucket.org / jespern/django-piston/commits/91bdaec89543
Patch
bugzilla.redhat.com / show_bug.cgi
djangoproject.com / weblog/2011/nov/01/piston-and-tastypie-security-releases
Vendor Advisory
debian.org / security/2011/dsa-2344
openwall.com / lists/oss-security/2011/11/01/10