CVE-2026-82853
Description
A flaw was found in Nodemailer. This vulnerability allows a remote attacker to inject arbitrary Simple Mail Transfer Protocol (SMTP) commands due to improper sanitization of carriage return and line feed characters in the transport name option. This can lead to email spoofing and phishing attacks.
Statement
Moderate: This SMTP command injection vulnerability in Nodemailer allows an attacker with high privileges to inject arbitrary SMTP commands. This could lead to email spoofing and phishing attacks within affected Red Hat products that utilize Nodemailer for email transport, such as Red Hat Developer Hub and Red Hat Ansible Automation Platform, where applications allow user or external input to configure the SMTP transport name option.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.9 | N/A | 4.9 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | High | N/A | High |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | High | N/A | High |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Application Data
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