CVE-2026-92598

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{"bugzilla": {"description": "nodemailer: Nodemailer: Domain allow-list bypass via improper international domain name encoding", "id": "2536089", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536089"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N", "status": "draft"}, "cwe": "CWE-289", "details": ["A flaw was found in Nodemailer. This vulnerability arises from the failure to properly apply UTS-46 normalization when encoding international domain names. A remote attacker can exploit this by crafting recipient addresses with invisible characters or compatibility mappings. This allows them to bypass domain allow-list checks, leading to emails being delivered to attacker-controlled domains via SMTP."], "name": "CVE-2026-92598", "public_date": "2026-09-16T21:47:02Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-92598\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-92598\nhttps://github.com/nodemailer/nodemailer/commit/259c32d\nhttps://github.com/nodemailer/nodemailer/commit/b212ac4\nhttps://github.com/nodemailer/nodemailer/security/advisories/GHSA-wmmp-3585-3rmp\nhttps://www.vulncheck.com/advisories/nodemailer-before-9.1.0-idn-punycode-domain-allow-list-bypass"], "threat_severity": "Moderate"}

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