Nodemailer before 9.1.0 Denial of Service via addressparser
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
Nodemailer before 9.1.0 contains a quadratic time complexity vulnerability in the addressparser component that allows remote attackers to cause denial of service by supplying a crafted comma-separated address list. Attackers can send a single email with a large number of addresses to block the Node.js event loop for extended periods, consuming 100% CPU and freezing the process.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
nodemailer · nodemailerReferences
https://github.com/nodemailer/nodemailer/commit/34da642https://github.com/nodemailer/nodemailer/commit/7cc38afhttps://github.com/nodemailer/nodemailer/commit/83b8c48https://github.com/nodemailer/nodemailer/commit/9116da9https://github.com/nodemailer/nodemailer/security/advisories/GHSA-2x7j-588g-ccc2https://www.vulncheck.com/advisories/nodemailer-before-9.1.0-denial-of-service-via-addressparser