CVE-2026-27492
Lettermint Node.js SDK leaks email properties to unintended recipients when client instance is reused
描述
### Impact 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 — such as transactional flows like password resets or notifications — are affected. ### Patches Yes, the issue has been patched. Users should upgrade to v1.5.1 or later. ### Workarounds If upgrading immediately is not possible, instantiate a new client for each send: ```js const client = new Lettermint({ apiKey: process.env.LETTERMINT_API_KEY }); await client.email.to('...').subject('...').html('...').send(); ``` This ensures no state is carried over between sends.
如何修補 CVE-2026-27492
要修補 CVE-2026-27492,請將受影響套件升級到下列已修補版本。
- —升級至 1.5.1 或更新版本
CVE-2026-27492 正在被利用嗎?
低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1.5.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |