CVE-2026-120215
Description
A flaw was found in @fastify/cors. An unauthenticated remote attacker can cause a Denial of Service (DoS) by sending a Cross-Origin Resource Sharing (CORS) preflight request to an application configured with a non-default hook. Under these conditions, the plugin improperly attempts to write response headers multiple times, triggering an unhandled error that can crash the server process.
Détails du score du système commun d'évaluation des vulnérabilités (CVSS)
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
Les mesures et les scores CVSS suivants sont préliminaires et sujets à révision.
Répartition des scores CVSS v3
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Score de base | 3.7 | N/A | 3.7 |
| Vecteur d'attaque | Network | N/A | Network |
| Complexité de l'attaque | High | N/A | High |
| Privilèges requis | None | N/A | None |
| Interaction avec l'utilisateur | None | N/A | None |
| Champ d'application | Unchanged | N/A | Unchanged |
| Confidentialité | None | N/A | None |
| Impact sur l'intégrité | None | N/A | None |
| Impact sur la disponibilité | Low | N/A | Low |
Vecteur
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Comprendre la Défaillance (CWE)
Availability,Confidentiality
Technical Impact: DoS: Crash, Exit, or Restart; Read Application Data
An uncaught exception could cause the system to be placed in a state that could lead to a crash, exposure of sensitive information, or other unintended behaviors.
Questions fréquemment posées
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