Vulnerability/
https://seclists.org/oss-sec/2026/q4/123

https://seclists.org/oss-sec/2026/q4/123: mutt 2.4.3 leased, fixes CVE-2026-107570

Published Oct 9, 2026

Updated

Affected Software

1 affected component

Mutt Mutt

Frequently Asked Questions

Which Mutt release contains the fix?

Mutt 2.4.3 includes a fix for an out-of-bounds heap write in convert_file_from_to().

Are any mitigations available for systems that cannot immediately upgrade?

The provided release announcement identifies the fix in Mutt 2.4.3 but does not describe workarounds or configuration-based mitigations.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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