CVE-2026-92598— Nodemailer before 9.1.0 IDN/Punycode Domain Allow-list Bypass
Quick assessment
Affected
nodemailer nodemailer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 9.1.0 之前，Nodemailer 在编码国际域名时未能应用 UTS-46 规范化，导致域名解析器计算出的 Punycode A-label 与符合标准的解析器结果不一致。攻击者可以构造包含不可见字符或兼容性映射的收件人地址，这些地址能够绕过域名白名单检查，并通过 SMTP 被投递到由攻击者控制的域名。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-92598
Vulnerability Information
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Vulnerability Title
Nodemailer before 9.1.0 IDN/Punycode Domain Allow-list Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Nodemailer before 9.1.0 fails to apply UTS-46 normalization when encoding international domain names, causing the domain resolver to compute a different Punycode A-label than standards-compliant parsers. Attackers can craft recipient addresses with invisible characters or compatibility mappings that pass domain allow-list checks but are delivered to attacker-controlled domains via SMTP.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
解释冲突
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| nodemailer | nodemailer | 0 ~ 9.1.0 | - |
|
II. Public POCs for CVE-2026-92598
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-92598 (2)
Other References for CVE-2026-92598 (2)
Same Patch Batch · nodemailer · 2026-09-16 · 4 CVEs total
| CVE-2026-92596 | 7.5 HIGH | Nodemailer before 9.1.0 Denial of Service via addressparser |
| CVE-2026-92597 | 6.5 MEDIUM | Nodemailer before 9.1.0 Email Domain Validation Bypass via RFC 5322 Comment |
| CVE-2026-92595 | 5.9 MEDIUM | Nodemailer before 9.1.1 Security Sandbox Bypass via resolveContent |
IV. Related Vulnerabilities
Same product: nodemailer
-
CVE-2026-92597
Nodemailer before 9.1.0 Email Domain Validation Bypass via R -
CVE-2026-92596
Nodemailer before 9.1.0 Denial of Service via addressparser -
CVE-2026-92595
Nodemailer before 9.1.1 Security Sandbox Bypass via resolveC -
CVE-2026-90776
Nodemailer 9.1.0 through 10.0.4 Denial of Service via Quadra -
CVE-2026-82853
Nodemailer before 8.0.5 SMTP Command Injection via CRLF
Same vendor: nodemailer
-
CVE-2026-92597
Nodemailer before 9.1.0 Email Domain Validation Bypass via R -
CVE-2026-92596
Nodemailer before 9.1.0 Denial of Service via addressparser -
CVE-2026-92595
Nodemailer before 9.1.1 Security Sandbox Bypass via resolveC -
CVE-2026-90776
Nodemailer 9.1.0 through 10.0.4 Denial of Service via Quadra -
CVE-2026-82854
Nodemailer before 8.0.3 SMTP Command Injection via envelope.
Same weakness: CWE-436
-
CVE-2026-92597
Nodemailer before 9.1.0 Email Domain Validation Bypass via R -
CVE-2026-91835
OpenClaw ClawScan File Classifier static_scanner.go IsBinary -
CVE-2026-88004
Traefik entrypoint header-name sanitization bypassed via req -
CVE-2026-87627
Google Chrome 处理逻辑错误漏洞 -
CVE-2026-82537
Roo-Code 3.54.0 Auto-Approve Bypass via Shell Parser Word-Bo
V. Comments for CVE-2026-92598
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