---
id: CVE-2026-90513
title: >-
  A flaw has been found in simalexan api-lambda-send-email-ses up to
  bda6869aa81371d1e872242e74fe7d953edb818d
summary: >-
  A flaw has been found in simalexan api-lambda-send-email-ses up to
  bda6869aa81371d1e872242e74fe7d953edb818d. This issue affects the function
  SES.sendEmail of the file template.yml of the component API Gateway Endpoint.
  This manipulation …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-287
  - CWE-306
vendor: simalexan
product: api-lambda-send-email-ses
affected:
  - api-lambda-send-email-ses bda6869aa81371d1e872242e74fe7d953edb818d
published: '2026-09-13'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:56:48.220'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90513'
references:
  - url: 'https://github.com/simalexan/api-lambda-send-email-ses/'
    label: cna@vuldb.com
  - url: 'https://github.com/simalexan/api-lambda-send-email-ses/issues/9'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-90513'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/911886'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403100'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403100/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-14T16:23:50.618482Z'
ingestedAt: '2026-09-14T15:23:07.471Z'
epss: 0.00758
epssPercentile: 0.53241
---

## Overview

A flaw has been found in simalexan api-lambda-send-email-ses up to bda6869aa81371d1e872242e74fe7d953edb818d. This issue affects the function SES.sendEmail of the file template.yml of the component API Gateway Endpoint. This manipulation of the argument toEmails/ccEmails/replyToEmails/subject/message causes missing authentication. It is possible to initiate the attack remotely. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.