https://seclists.org/oss-sec/2026/q2/393: Fwd: [pfx] Postfix stable lease 3.11.2 and legacy leases 3.10.9, 3.9.10, 3.8.16
Published May 4, 2026
·Updated
Affected Software
1 affected component
Postfix Postfix>=3.11.0<3.11.2, >=3.10.0<3.10.9, >=3.9.0<3.9.10, >=3.8.0<3.8.16, >=2.3<=3.7
Frequently Asked Questions
1
What is the severity of the vulnerability in Postfix 3.8, 3.9, 3.10?
The security vulnerability in Postfix 3.8, 3.9, and 3.10 is classified as critical due to its potential to allow unauthorized access.
2
How do I fix the vulnerability in Postfix 3.8, 3.9, 3.10?
To fix the vulnerability in Postfix 3.8, 3.9, and 3.10, upgrade to Postfix version 3.11.2 or the latest versions of those branches.
3
What versions of Postfix are affected by this vulnerability?
The affected versions of Postfix are 3.8.16, 3.9.10, and 3.10.9, as identified in the announcement.
4
What type of vulnerabilities were fixed in Postfix 3.8, 3.9, and 3.10 updates?
The updates in Postfix 3.8, 3.9, and 3.10 address critical security issues that could lead to unauthorized access or data exposure.
5
Is there a risk of data loss with the vulnerability in Postfix 3.8, 3.9, 3.10?
Yes, there is a risk of data loss or system compromise due to the critical nature of the vulnerability in Postfix 3.8, 3.9, and 3.10.