Descrição
Hono before 4.12.7 allows __proto__ key in parseBody with dot option enabled, permitting specially crafted form field names to create objects with __proto__ properties. When parsed results are merged into regular JavaScript objects using unsafe merge patterns, attackers can exploit this to achieve prototype pollution and modify object behavior.
CVSS 4.8EPSS 0.17700000000000002%Risco 0.49
Ver fonte- Publicação
- 2026-07-11 14:16:22
- Versões afetadas
- <4.12.7
- Tipo
- Biblioteca
- Vetor
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N