CVE-2018-19443: Session Fixation in Tryton
Summary
CVE-2018-19443: Session Fixation in Tryton. Affects tryton versions >= 5.0.0, < 5.0.1. Fixed in 5.0.1. How to fix ↓
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Background
Tryton is an open-source business application platform written in Python. It provides a set of modules for various business functions such as accounting, inventory management, and project management. Tryton version 5.x before 5.0.1 is affected by a session fixation vulnerability.
Vulnerability Detail
The client in Tryton 5.x before 5.0.1 attempts to establish a connection to the bus in cleartext instead of using encryption under certain circumstances. Although this connection attempt fails, it includes the current session of the user in the header. This session could potentially be stolen by a man-in-the-middle attacker, leading to unauthorized access and potential data compromise.
How To Fix
Latest published version: 8.2.0 as of 22 Oct 2026
pip install --upgrade "tryton==8.2.0"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
5.0.1
This is the first release that contains the fix.
pip install --upgrade "tryton==5.0.1"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The session fixation vulnerability in Tryton 5.x before 5.0.1 could allow an attacker to steal user sessions and potentially gain unauthorized access to sensitive information. Users are advised to upgrade to version 5.0.1 or later to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for tryton →
FAQ
Tryton is an open-source business application platform written in Python. It provides a modular and flexible framework for developing and deploying business applications.
Session fixation is a type of attack where an attacker sets the session identifier of a user before they authenticate, allowing the attacker to hijack the user's session after successful authentication.
If exploited, this vulnerability could allow an attacker to steal user sessions and gain unauthorized access to sensitive information or perform actions on behalf of the user.
There is no known public exploit for this vulnerability at the time of this advisory.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your Tryton installation is affected by this vulnerability. Simply provide your Pipfile.lock and the playground will analyze it for any known vulnerabilities.
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