{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100702","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-26T02:39:50.973Z","datePublished":"2026-09-26T13:23:57.945Z","dateUpdated":"2026-09-26T23:11:16.551Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-26T13:23:57.945Z"},"datePublic":"2026-09-10T00:00:00.000Z","title":"Nodemailer before 10.0.2 Stack Exhaustion via Nested Recipient Arrays","descriptions":[{"lang":"en","value":"Nodemailer before 10.0.2 fails to properly flatten deeply nested arrays in recipient fields such as to, cc, and bcc, allowing attackers to cause stack exhaustion. Attackers can supply a deeply nested JSON recipient array that triggers recursive Array.toString() conversion, exhausting the call stack and terminating the Node.js process."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Uncontrolled Recursion","cweId":"CWE-674","type":"CWE"}]}],"affected":[{"vendor":"nodemailer","product":"nodemailer","defaultStatus":"unaffected","packageURL":"pkg:npm/nodemailer","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"10.0.2"},{"version":"10.0.2","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.2"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-8vvx-rff5-p5rq","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-8vvx-rff5-p5rq)"},{"name":"VulnCheck Advisory: Nodemailer before 10.0.2 Stack Exhaustion via Nested Recipient Arrays","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/nodemailer-before-10.0.2-stack-exhaustion-via-nested-recipient-arrays"}],"credits":[{"lang":"en","value":"ry2811","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-26T23:11:09.180121Z","id":"CVE-2026-100702","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-26T23:11:16.551Z"}}]}}