DEBIAN-CVE-2025-26696

Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8...

The vulnerability of the Thunderbird email client arises due to insufficient implementation of security measures, allowing attackers to compromise data integrity.

The vulnerability of the Thunderbird email client exists due to insufficient implementation of security measures. Exploiting this vulnerability allows a malicious actor to manipulate data integrity through a specially crafted email with MIME encoding. Such emails contain an embedded signed or...