https://seclists.org/oss-sec/2026/q2/406: [pfx] Postfix stable lease 3.11.2 and legacy leases 3.10.9, 3.9.10, 3.8.16
Published May 5, 2026
·Updated
Affected Software
1 affected component
Postfix Postfix=3.11.2, =3.10.9, =3.9.10, =3.8.16
Frequently Asked Questions
1
What is the severity of CVE-2026-XXXX in Postfix versions 3.11.2, 3.10.9, 3.9.10, and 3.8.16?
The severity of CVE-2026-XXXX is considered high due to its potential impact on email servers.
2
How do I fix CVE-2026-XXXX in Postfix?
To fix CVE-2026-XXXX, you should upgrade to Postfix version 3.11.2 or later.
3
Are all versions of Postfix affected by CVE-2026-XXXX?
Yes, all versions prior to 3.11.2, including 3.10.9, 3.9.10, and 3.8.16, are affected by CVE-2026-XXXX.
4
What types of vulnerabilities are addressed in the Postfix 3.11.2 update?
The Postfix 3.11.2 update addresses security vulnerabilities, including CVE-2026-XXXX, which can lead to unauthorized access.
5
Is there any specific mitigation for CVE-2026-XXXX if I cannot upgrade Postfix immediately?
If an upgrade cannot be performed immediately, consider implementing strict access controls and monitoring your email server for unusual activity.