CVE-2026-27492

{"id": "CVE-2026-27492", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27492", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-24T18:08:16.795387Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.0}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "lettermint", "product": "lettermint-node", "versions": [{"status": "affected", "version": "< 1.5.1"}]}]}], "published": "2026-02-21T11:15:57.287", "references": [{"url": "https://github.com/lettermint/lettermint-node/blob/main/CHANGELOG.md#151-2026-02-20", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/lettermint/lettermint-node/commit/24a17acbc2429c5eb30391f9df3dc0ea7aaf4de1", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/lettermint/lettermint-node/security/advisories/GHSA-49pc-8936-wvfp", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-488"}]}], "descriptions": [{"lang": "en", "value": "Lettermint Node.js SDK is the official Node.js SDK for Lettermint. In versions 1.5.0 and below, email properties (such as to, subject, html, text, and attachments) are not reset between sends when a single client instance is reused across multiple .send() calls. This can cause properties from a previous send to leak into a subsequent one, potentially delivering content or recipient addresses to unintended parties. Applications sending emails to different recipients in sequence \u2014 such as transactional flows like password resets or notifications \u2014 are affected. This issue has been fixed in version 1.5.1."}, {"lang": "es", "value": "El SDK de Node.js de Lettermint es el SDK oficial de Node.js para Lettermint. En las versiones 1.5.0 e inferiores, las propiedades del correo electr\u00f3nico (como 'para', 'asunto', 'html', 'texto' y 'archivos adjuntos') no se restablecen entre env\u00edos cuando una \u00fanica instancia de cliente se reutiliza en m\u00faltiples llamadas a .send(). Esto puede provocar que las propiedades de un env\u00edo anterior se filtren en uno posterior, entregando potencialmente contenido o direcciones de destinatarios a partes no deseadas. Las aplicaciones que env\u00edan correos electr\u00f3nicos a diferentes destinatarios en secuencia \u2014 como flujos transaccionales como restablecimientos de contrase\u00f1a o notificaciones \u2014 se ven afectadas. Este problema ha sido solucionado en la versi\u00f3n 1.5.1."}], "lastModified": "2026-06-17T10:27:14.857", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:lettermint:lettermint:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "20B84381-74A5-4D57-91F0-5626B5462944", "versionEndExcluding": "1.5.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}