CVE-2025-26696 Crafted email message incorrectly shown as being encrypted

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...

PT-2025-10626 · Mozilla +5 · Thunderbird +5

Name of the Vulnerable Software and Affected Versions: Thunderbird versions prior to 136 Thunderbird versions prior to 128.8 Description: The issue arises from certain crafted MIME email messages that claim to contain an encrypted OpenPGP message but actually contain an OpenPGP signed message,...