> CVE-2026-56669 [HIGH]

« BACK_TO_HOME
PUBLISHED
2026-07-08 21:16
MODIFIED
2026-07-08 21:16
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.63%
Top 50.4%
DATA SOURCES:
NVD đź”— 2026-07-08 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-10-25 OSV đź”— 2026-07-15

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
3.9
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-407 CWE-436

> CWE DETAILED DESCRIPTIONS

CWE-407: Inefficient Algorithmic Complexity - An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached. | CWE-436: Interpretation Conflict - Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict

AFFECTED PACKAGES:
Unknown / Unknown
80 versions affected
ALIASES:
GHSA-9643-4qgh-g8mx

> HISTORIQUE DES MODIFICATIONS

Première apparition
08/07/2026 21:16
Source: NVD
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-407: Inefficient Algorithmic Complexity - An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an ...
Total des modifications: 1 Dernière mise à jour: 3 months ago

> REFERENCES

https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9
https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab593...
https://github.com/elysiajs/elysia/releases/tag/1.4.29
https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx
« BACK_TO_HOME