{"action":"Upgrade aiosmtplib to 5.1.1 or later.","affected":[{"fixed":"5.1.1","introduced":"0"}],"component":"aiosmtplib","cve_ids":["CVE-2026-53533"],"ecosystem":"PyPI","epss":0.00525,"exploited":false,"fixed_versions":["5.1.1"],"ghsa_id":"GHSA-v3q9-hj7j-63hq","id":"tcs_01M5KFZ41B70552AESS6YM2VKN","modified_at":"2026-09-10T03:50:53.029848773Z","published_at":"2026-07-07T23:40:52Z","references":["https://osv.dev/vulnerability/GHSA-v3q9-hj7j-63hq","https://github.com/cole/aiosmtplib/security/advisories/GHSA-v3q9-hj7j-63hq","https://github.com/cole/aiosmtplib"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-v3q9-hj7j-63hq","url":"https://osv.dev/vulnerability/GHSA-v3q9-hj7j-63hq"}],"summary":"aiosmtplib vulnerable to SMTP command injection via CR/LF in sender/recipient address"}