CVE-2026-31865

MEDIUM

6.5

Description

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication. Prior to version 1.4.27, an Elysia cookie can be overridden by prototype pollution , eg. `__proto__`. This issue is patched in 1.4.27. As a workaround, use t.Cookie validation to enforce validation value and/or prevent iterable over cookie if possible.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/18/2026

Derniere modification3/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

elysiajs:elysia

Faiblesses (CWE)

CWE-1321

References

https://github.com/elysiajs/elysia/commit/e9d6b1743fa7368ef942dce181f6a089757f6aab(security-advisories@github.com)

https://github.com/elysiajs/elysia/security/advisories/GHSA-8hq9-phh3-p2wp(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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