CVE-2026-55091

high

Description

flat-to-nested: Prototype pollution in flat-to-nested convert() via __proto__ parent/id key

Details

Source: Mitre, NVD

Published: 2026-06-19

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High