# aiosmtplib (PyPI) vulnerabilities

2 known vulnerabilities (2 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pypi.org/project/aiosmtplib/

## Advisories (2)

### [CVE-2026-55558](https://cve.now/CVE-2026-55558): aiosmtplib: STARTTLS response injection

- Severity: Medium 5.9
- Published: Aug 20, 2026
- Affected: fixed in 5.1.2.

### [CVE-2026-53533](https://cve.now/CVE-2026-53533): aiosmtplib: SMTP command injection via CR/LF in sender/recipient address

- Severity: Medium 6.9
- Published: Aug 18, 2026
- Affected: fixed in 5.1.1.

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