PT-2026-90555 · Cole · Aiosmtplib
CVE-2026-90467
·
Published
2026-09-12
·
Updated
2026-09-12
CVSS v3.1
4.0
Medium
| Vector | AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N |
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 ORCPT to envelope commands, forging authenticated identities or forcing delivery notifications to third parties.
Fix
Argument Injection
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Weakness Enumeration
Related Identifiers
Affected Products
Aiosmtplib