CVE-2026-27492 affects the Lettermint Node.js SDK versions 1.5.0 and below, where email properties are not reset between consecutive sends using a single client instance. This can lead to sensitive information, such as recipient addresses or email content, being inadvertently delivered to unintended parties. The vulnerability has a CVSS score of 4.7 (Medium), indicating a local attack vector with high attack complexity, requiring low privileges, and resulting in high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.5.1CPE matchmatch criteria | cpe:2.3:a:lettermint:lettermint:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.