CVE-2025-14874CWE-703

CVE-2025-14874

High · published December 18, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
45.6
In the wild
Unconfirmed
What it is

⚡ A cleverly crafted email address could lead Nodemailer into an endless loop! Talk about a never-ending story! 📧 Think of it like a restaurant with a menu item that causes the kitchen to cook the same dish over and over because the order is misinterpreted — total chaos ensues! This vulnerability could bring your email services to a grinding halt, leaving users unable to send or receive messages. An attacker could exploit this flaw, triggering infinite recursion that not only disrupts service, but could also overwhelm your systems. Absolutely devastating!

Put simply

Think of it like a restaurant with a menu item that causes the kitchen to cook the same dish over and over because the order is misinterpreted — total chaos ensues! The flaw in Nodemailer allows a denial of service (DoS) when a crafted email address header is processed, causing the address parser to enter an infinite recursion loop.

What to do

This vulnerability could bring your email services to a grinding halt, leaving users unable to send or receive messages. An attacker could exploit this flaw, triggering infinite recursion that not only disrupts service, but could also overwhelm your systems. Absolutely devastating! Update Nodemailer to the latest version where this issue is fixed. Regularly review and sanitize email header inputs to prevent such exploits in the future. Don't let a rogue email take your services offline! You've got this! Follow these steps and keep your email services running smoothly! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00556 · 45.6th percentile
Weakness
CWE-703 · Improper Check or Handling of Exceptional Conditions
Published
2025-12-18T14:15Z
Affected products (4)
ProductVersionsFixed in
nodemailer/nodemailer< 7.0.117.0.11
redhat/advanced_cluster_management_for_kubernetesall versions—
redhat/ceph_storageall versions—
redhat/developer_huball versions—
References (7)
EPSS history
Timeline
  • 18 DEC 08:40Z
    Nodemailer: nodemailer: denial of service via crafted email address header
    cvelistv5