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Threatist priority CRITICAL 0 HIGH 1 MEDIUM 1 LOW 0

Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

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Impact type Code execution 0 Privilege escalation 0 Security bypass 0 Information disclosure 0 Tampering 0 Denial of service 2 Spoofing 0 Cross-site scripting 0 SQL injection 0

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Requirements No authentication 1 No user interaction 2

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Weakness (CWE) CWE-400 Uncontrolled Resource Consumption 2 CWE-407 Inefficient Algorithmic Complexity 1

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Release: nodemailer 10.0.10 × Clear all filters

TI-2026-74562 CVE-2026-110872

Denial of service in Nodemailer SMTP reply parsing

Priority HIGH 69

Nodemailer from 3.0.0 before 10.0.10 contains a quadratic complexity denial of service vulnerability in the SMTP client reply parser in SMTPConnection._onData and isPartialResponse.

CVSS 4.0HIGH 8.2· Network · No auth · No interaction · EPSS 0.00355 · Published 2026-10-14 · Partial fix · 10.0.10 CWE-400

TI-2026-74561 CVE-2026-110871 · GHSA-39m8-27wv-hr27

Quadratic header unfolding in Nodemailer enables denial of service

Priority MEDIUM 64

Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding.

CVSS 4.0HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.00381 · Published 2026-10-14 · Partial fix · 10.0.10 CWE-400

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