CVE-2026-56669

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication. Prior to 1.4.29, Elysia uses getAll in form data normalization for multipart/form-data endpoints, causing the amount of work to grow quadratically with the number of unique key-value pairs and allowing CPU exhaustion. This issue is fixed in version 1.4.29.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9
https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329
https://github.com/elysiajs/elysia/releases/tag/1.4.29
https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx

Configurations

No configuration.

History

08 Jul 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-08 21:16

Updated : 2026-07-10 19:10

NVD link : CVE-2026-56669

Mitre link : CVE-2026-56669

CVE.ORG link : CVE-2026-56669

JSON object : View

Products Affected

No product.

CWE

CWE-407

Inefficient Algorithmic Complexity

CWE-436

Interpretation Conflict

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