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CVE-2026-90513— simalexan api-lambda-send-email-ses API Gateway Endpoint template.yml SES.sendEmail missing authentication

Quick assessment

Affected
simalexan api-lambda-send-email-ses
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Aleksandar Simovic api-lambda-send-email-ses是Aleksandar Simovic个人开发者的一款基于云函数发送电子邮件的接口服务。 Aleksandar Simovic api-lambda-send-email-ses bda6869aa81371d1e872242e74fe7d953edb818d及之前版本存在授权问题漏洞，该漏洞源于API Gateway Endpoint组件中template.yml文件的SES.sendEmail函数对参数toEmai

CVSS 6.5 · Medium EPSS 0.76% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
simalexan api-lambda-send-email-ses bda6869aa81371d1e872242e74fe7d953edb818d affected
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I. Basic Information for CVE-2026-90513

Vulnerability Information
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Vulnerability Title
simalexan api-lambda-send-email-ses API Gateway Endpoint template.yml SES.sendEmail missing authentication
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Aleksandar Simovic api-lambda-send-email-ses 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Aleksandar Simovic api-lambda-send-email-ses是Aleksandar Simovic个人开发者的一款基于云函数发送电子邮件的接口服务。 Aleksandar Simovic api-lambda-send-email-ses bda6869aa81371d1e872242e74fe7d953edb818d及之前版本存在授权问题漏洞，该漏洞源于API Gateway Endpoint组件中template.yml文件的SES.sendEmail函数对参数toEmai
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
simalexan api-lambda-send-email-ses bda6869aa81371d1e872242e74fe7d953edb818d cpe:2.3:a:simalexan:api-lambda-send-email-ses:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90513

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-90513

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Proof of Concept for CVE-2026-90513 (1)

Other References for CVE-2026-90513 (1)

IV. Related Vulnerabilities

Same weakness: CWE-306

V. Comments for CVE-2026-90513

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