CVE-2026-90582 Details
Description
A vulnerability was identified in evanchiu serverless-todo 1.0.3/2.0.0. Impacted is the function saveTodos of the file src/index.js of the component API Todo Endpoint. Such manipulation of the argument event.body leads to resource consumption. The attack can be executed remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
A denial-of-service vulnerability has been identified in Evanchiu Serverless-Todo versions 1.0.3 and 2.0.0. The issue arises in the API Todo Endpoint, specifically within the saveTodos function in src/index.js. The vulnerability allows for unbounded resource consumption by sending large JSON payloads to the /api/todos endpoint. This can be exploited remotely, and the published exploit may be used against applications deployed via the AWS Serverless Application Repository.
To address this vulnerability, implement server-side validation of the JSON payload before it is processed by the saveTodos function. This validation should include checks for maximum payload size, array structure, item count, and field types. Additionally, consider using API Gateway request validation, AWS WAF rate-based rules, and Lambda reserved concurrency to further mitigate the risk.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 13, 2026CISA-ADP
Assessed Sep 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/evanchiu/serverless-todo/ | [email protected] | ProductVendor |
| https://github.com/evanchiu/serverless-todo/issues/10 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/cve/CVE-2026-90582 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/913598 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/403167 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/403167/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| evanchiu serverless-todo | 1.0.3 (semver) 2.0.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 15, 2026 | CVE Modified | CISA-ADP |
| Sep 13, 2026 | New CVE Received | [email protected] |