How severe is CVE-2016-9014?

CVE-2016-9014 has a CVSS score of 8.1/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2016-9014?

CVE-2016-9014 affects the following packages: django (PyPI), django (PyPI), django (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2016-9014?

Update django to 1.8.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-9014 is resolved across your whole dependency graph.

How do I detect CVE-2016-9014 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for django, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2016-9014 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2016-9014 actively exploited in the wild?

No public exploit code has been indexed for CVE-2016-9014 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2016-9014?

CVE-2016-9014 has an EPSS (Exploit Prediction Scoring System) score of 6.1%, placing it in the 93th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2016-9014?

CVE-2016-9014 is classified as CWE-264 (CWE-264). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2016-9014 published, and has it been updated?

CVE-2016-9014 was published on December 9, 2016 and was last updated on October 24, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍

🐍 PyPI

Not in CISA KEV

HIGH severity

CVE-2016-9014 — django

HIGHFix: django/django@45acd6d

CVE-2016-9014 is a high-severity (CVSS 8.1) CWE-264 vulnerability in django. A fix is available for django — see the affected versions and patch details below.

Django DNS Rebinding Vulnerability

Also known asGHSA-3f2c-jm6v-cr35PYSEC-2016-18

Published

Dec 9, 2016

Updated

Oct 24, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

None indexed

Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

6.1%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs93th percentile — riskier than 93% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

3 pkgs affected

🐍django🐍django🐍django

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Django before 1.8.x before 1.8.16, 1.9.x before 1.9.11, and 1.10.x before 1.10.3, when settings.DEBUG is True, allow remote attackers to conduct DNS rebinding attacks by leveraging failure to validate the HTTP Host header against settings.ALLOWED_HOSTS.

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`django`	≥ 1.8a1&&< 1.8.16	1.8.16`pip install --upgrade 'django==1.8.16'`
🐍PyPI	`django`	≥ 1.9a1&&< 1.9.11	1.9.11`pip install --upgrade 'django==1.9.11'`
🐍PyPI	`django`	≥ 1.10a1&&< 1.10.3	1.10.3`pip install --upgrade 'django==1.10.3'`

Affected Products

3 products · 36 configurations

ubuntu linuxcanonical

4 versions

12.0414.0416.0416.10

Application

djangodjangoproject

30 versions

1.81.8.11.8.21.8.31.8.41.8.51.8.61.8.71.8.81.8.91.8.101.8.11

fedorafedoraproject

2 versions

2425

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for django, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update django to 1.8.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-9014 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2016-9014 in your dependencies?

Find it across PyPI, including transitive dependencies.

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