CVE-2009-0668: ZODB Unspecified Remote Code Execution
Summary
CVE-2009-0668: Unspecified vulnerability in Zope Object Database (ZODB) before 3.8.2, when certain Zope Enterprise Objects (ZEO) database sharing is enabled, allows remote attackers to execute arbitrary Python code via vectors involvin... Affects zodb3 versions < 3.8.2. Fixed in 3.8.2. How to fix ↓
Also tracked for
- zodb · Debian:10
The same CVE-2009-0668 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
ZODB (Zope Object Database) is a native object database for Python. It provides a way to store Python objects in a database, allowing persistence and retrieval of complex data structures. ZODB is commonly used in conjunction with ZEO (Zope Enterprise Objects) for distributed database sharing. ZEO enables multiple ZODB clients to connect to a single ZODB server, allowing concurrent access to the database. This vulnerability affects ZODB versions prior to 3.8.2 when ZEO database sharing is enabled.
Vulnerability Detail
The vulnerability in ZODB allows remote attackers to execute arbitrary Python code through vectors involving the ZEO network protocol. The specific details of the vulnerability are unspecified, but it is likely that the issue lies in the handling of network requests in the ZEO protocol. Exploiting this vulnerability could lead to unauthorized code execution on the affected system, potentially resulting in a complete compromise of the system.
How To Fix
Latest published version: 3.11.0 as of 22 Oct 2026
pip install --upgrade "zodb3==3.11.0"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
3.8.2
This is the first release that contains the fix.
pip install --upgrade "zodb3==3.8.2"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 strongly advised to apply the recommended fix by upgrading to the patched version of ZODB.
Conclusion
The vulnerability in ZODB allows remote code execution through the ZEO network protocol. To mitigate this issue, it is crucial to upgrade to ZODB version 3.8.2 or later. This will ensure that the necessary patches are applied to address the vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
ZODB (Zope Object Database) is a native object database for Python. It provides a way to store Python objects in a database, allowing persistence and retrieval of complex data structures.
ZEO (Zope Enterprise Objects) is a component of ZODB that enables distributed database sharing. It allows multiple ZODB clients to connect to a single ZODB server, enabling concurrent access to the database.
The vulnerability occurs when ZEO database sharing is enabled in ZODB. It allows remote attackers to execute arbitrary Python code through vectors involving the ZEO network protocol.
Exploiting this vulnerability could lead to unauthorized code execution on the affected system. Attackers could execute arbitrary Python code, potentially resulting in a complete compromise of the system.
To fix this vulnerability, it is recommended to upgrade to ZODB version 3.8.2 or later. This version includes the necessary patches to address the vulnerability.
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