CVE-2026-100700

HIGHCVSS 7.5

nodemailer before 10.0.6 contains a denial of service vulnerability in the addressparser free-text fallback regex pattern that exhibits quadratic backtracking behavior. Attackers can supply crafted email header values with long whitespace-free runs to block the Node.js event loop for tens of seconds, causing service unavailability.

Published 2026-09-26 · last modified 2026-09-26

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.