CVE•Published 2026-09-12•0 articles on news•4 live references•NVD data
CVE-2026-90467
Vulnerability data via NVD (ingested)
CVSS v3.1
4.0
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
EPSS percentile
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Weaknesses (CWE)
Description
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.
Timeline
Published 2026-09-12
Modified 2026-09-12
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2026-90467Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-90467Censys host search filtered to this CVE id.
grep.app
CVE-2026-90467Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-90467GitHub code search for direct mentions.
Google dork
"CVE-2026-90467" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-90467 on GitHub.
We haven't classified any articles referencing CVE-2026-90467 yet. The external references above still apply.