Bug 2526197 (CVE-2026-82853)

Summary: CVE-2026-82853 nodemailer: Nodemailer: SMTP Command Injection allows email spoofing and phishing attacks
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abarbaro, alizardo, dschmidt, jchui, jhe, jlanda, kaycoth, kshier, ktsao, lchilton, nboldt, oaljalju, psrna, rhel-process-autobot, sfeifer, simaishi, stcannon, teagle, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-31 09:04:31 UTC
Nodemailer versions before 8.0.5 contain an SMTP command injection vulnerability in the transport name option used in EHLO/HELO commands. The name parameter is concatenated directly into SMTP commands without sanitizing carriage return and line feed characters, allowing attackers to inject arbitrary SMTP commands for email spoofing and phishing attacks.