CVE-2026-90467 aiosmtplib before 5.1.3 ESMTP Parameter Injection via unvalidated addresses

aiosmtplib before 5.1.3 fails to properly validate email addresses supplied by callers, allowing attackers to inject ESMTP parameters into MAIL FROM and RCPT TO command lines. Attackers can craft malicious addresses containing spaces and angle brackets to append parameters like AUTH, NOTIFY, or...

CVE-2026-90467: Improper Neutralization of Argument Delimiters in a Command

aiosmtplib before 5.1.3 fails to properly validate email addresses supplied by callers, allowing attackers to inject ESMTP parameters into MAIL FROM and RCPT TO command lines. Attackers can craft malicious addresses containing spaces and angle brackets to append parameters like AUTH, NOTIFY, or...

What is Smishing? The 101 guide

Smishing is a valuable tool in the scammers armoury. Youve likely run into it, even if you didnt know that is its name. It doesnt arrive by email or social media direct message, instead choosing a route directly aimed at what may be your most personal device: the mobile phone. So, what is Smishin...

ThreatList: Holiday Spam, the Perfect Seasonal Gift for Criminals

Maybe holiday cheer makes people less cynical. If so, that explains why social-engineering spam tactics prove to be more effective during the festive season. New research shows that spam campaigns disguised as delivery notifications or online shopping invoices, while always a favored tactic by...

Threat Outbreak Alert RuleID23287: Email Messages Distributing Malicious Software on June 4, 2016

Medium Alert ID: 46561 First Published: 2016 June 6 13:27 GMT Version: 1 Summary Cisco Security has detected significant activity related to spam email messages distributing malicious software. Email messages that are related to this threat RuleID23287 may contain the following files: Name | Size...