Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-82660— Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess

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.

Nodemailer是nodemailer组织开源的一个在Node.js应用中发送电子邮件的模块。 Nodemailer 8.0.9之前版本存在授权问题漏洞，该漏洞源于jsonTransport在消息规范化期间未强制实施disableFileAccess和disableUrlAccess选项，攻击者可通过在消息内容字段中提供path或href值读取本地文件或获取URL，从而绕过预期访问控制。

CVSS 5.4 · Medium EPSS 0.26% · P16

Affected Version Matrix 2

VendorProduct Version RangeStatus
nodemailer nodemailer < 8.0.9 affected
8.0.9 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-82660

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess
Source: CVE Program / CVE List V5
Vulnerability Description
Nodemailer before 8.0.9 fails to enforce disableFileAccess and disableUrlAccess options during message normalization in jsonTransport. Attackers can read local files or fetch URLs by supplying path or href values in message content fields, bypassing intended access controls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Nodemailer 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nodemailer是nodemailer组织开源的一个在Node.js应用中发送电子邮件的模块。 Nodemailer 8.0.9之前版本存在授权问题漏洞，该漏洞源于jsonTransport在消息规范化期间未强制实施disableFileAccess和disableUrlAccess选项，攻击者可通过在消息内容字段中提供path或href值读取本地文件或获取URL，从而绕过预期访问控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nodemailer nodemailer 0 ~ 8.0.9 -

II. Public POCs for CVE-2026-82660

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-82660

请登录查看更多情报信息。

Other References for CVE-2026-82660 (2)

Same Patch Batch · nodemailer · 2026-08-31 · 7 CVEs total

CVE-2026-82854 9.8 CRITICAL Nodemailer before 8.0.3 SMTP Command Injection via envelope.size
CVE-2026-82659 7.1 HIGH nodemailer before 9.0.1 File Read and SSRF via raw option
CVE-2026-82662 6.5 MEDIUM Nodemailer before 8.0.8 TLS Certificate Validation Bypass
CVE-2026-82661 5.4 MEDIUM Nodemailer CRLF Injection via List-* Header Comments
CVE-2024-58379 5.3 MEDIUM nodemailer before 6.9.9 ReDoS via attachDataUrls parameter
CVE-2026-82853 4.9 MEDIUM Nodemailer before 8.0.5 SMTP Command Injection via CRLF

IV. Related Vulnerabilities

Same product: nodemailer
Same vendor: nodemailer
Same weakness: CWE-862

V. Comments for CVE-2026-82660

No comments yet

Leave a comment