CVE-2013-2255: Neutron Package Vulnerable to Improper Certificate Validation
Summary
CVE-2013-2255: OpenStack Keystone and other components vulnerable to Improper Certificate Validation. Affects neutron versions < 7.0.0a0. Fixed in 7.0.0a0. How to fix ↓
Also tracked for
- cinder · PyPI
- python-keystoneclient · PyPI
- keystone · PyPI
- python-keystoneclient · PyPI
- keystone · Debian:11
The same CVE-2013-2255 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
Neutron is an essential component of the OpenStack cloud computing platform, responsible for providing networking as a service. It enables users to create and manage networks, subnets, and routers, facilitating communication between various cloud resources. The vulnerability in question affects the SSL certificate validation process, potentially exposing users to man-in-the-middle attacks.
Vulnerability Detail
The vulnerability arises from the failure of HTTPSConnections in OpenStack Keystone 2013 and OpenStack Compute 2013.1, as well as possibly other OpenStack components, to properly validate server-side SSL certificates. This oversight can allow attackers to intercept and manipulate data transmitted over secure connections, leading to unauthorized access and data breaches.
How To Fix
Latest published version: 29.0.0 as of 22 Oct 2026
pip install --upgrade "neutron==29.0.0"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
7.0.0a0
This is the first release that contains the fix.
pip install --upgrade "neutron==7.0.0a0"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you can disable SSL certificate verification in your application. However, this is not recommended for production environments as it exposes your application to security risks. If you choose to implement this workaround, you can modify your code as follows: 'import ssl; ssl._create_default_https_context = ssl._create_unverified_context'. This will bypass SSL certificate validation, but be aware of the potential security implications.
Conclusion
The CVE-2013-2255 vulnerability in the Neutron package poses significant security risks due to improper SSL certificate validation. It is crucial for users to update to the patched version to protect their applications from potential attacks. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
See every vulnerability recorded for neutron →
FAQ
CVE-2013-2255 is a vulnerability in the Neutron package that allows improper validation of SSL certificates, potentially leading to man-in-the-middle attacks.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The CVSS score for this vulnerability is 5.9, indicating a moderate level of risk.
If exploited, this vulnerability can allow attackers to intercept and manipulate data, leading to unauthorized access and data breaches.
Yes, a patch is available in version 7.0.0a0 of the Neutron package. It is recommended to update to this version to mitigate the risk.
References
Related vulnerabilities
Recent vulnerabilities recorded for neutron.
