CVE-2012-4571: Python Keyring 0.9.1 Insecure Cipher Initialization
Summary
CVE-2012-4571: Python Keyring 0.9.1 does not securely initialize the cipher when encrypting passwords for CryptedFileKeyring files, which makes it easier for local users to obtain passwords via a brute-force attack. Affects keyring versions < 0.9.2. Fixed in 0.9.2. How to fix ↓
Also tracked for
- python-keyring · Debian:11
The same CVE-2012-4571 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
Python Keyring is a package that provides a way to store and retrieve passwords securely. It offers a unified API for accessing passwords from different keyring backends. The CryptedFileKeyring is one such backend that allows users to encrypt passwords and store them in a file. However, in version 0.9.1, the cipher used for encryption is not securely initialized, making it easier for local users to obtain passwords through brute-force attacks.
Vulnerability Detail
The vulnerability in Python Keyring 0.9.1 lies in the insecure initialization of the cipher when encrypting passwords for CryptedFileKeyring files. This flaw allows local users to potentially retrieve passwords by performing brute-force attacks. By exploiting this vulnerability, an attacker with local access to the system could gain unauthorized access to sensitive information, compromising the security of the affected system.
How To Fix
Latest published version: 25.7.0 as of 22 Oct 2026
pip install --upgrade "keyring==25.7.0"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
0.9.2
This is the first release that contains the fix.
pip install --upgrade "keyring==0.9.2"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is recommended to upgrade to the fixed version of Python Keyring as soon as possible.
Conclusion
The vulnerability in Python Keyring 0.9.1 allows local users to potentially retrieve passwords through brute-force attacks. It is crucial to upgrade to version 0.9.2 or later to address this issue and ensure the secure encryption of passwords. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Python Keyring is a package that provides a secure way to store and retrieve passwords.
This vulnerability allows local users to potentially obtain passwords through brute-force attacks, compromising the security of the affected system.
To fix this vulnerability, upgrade to Python Keyring version 0.9.2 or later.
There is no known workaround. It is recommended to upgrade to the fixed version of Python Keyring.
For more information, you can refer to the official Python Keyring advisory: [link to advisory]
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