aiosmtplib vulnerabilities (PyPI)

2 vulnerabilities.

• aiosmtplib PyPI aiosmtplib: STARTTLS response injection CVE-2026-55558 Fix available 5.9 MediumAugust 20, 2026
• aiosmtplib PyPI aiosmtplib: SMTP command injection via CR/LF in sender/recipient address CVE-2026-53533 Fix available 6.9 MediumJune 15, 2026