Description
Conform, a type-safe form validation library, allows the parsing of nested objects in the form of `object.property`. Due to an improper implementation of this feature in versions prior to 1.1.1, an attacker can exploit the feature to trigger prototype pollution by passing a crafted input to `parseWith...` functions. Applications that use conform for server-side validation of form data or URL parameters are affected by this vulnerability. Version 1.1.1 contains a patch for the issue.
Scores
CVSS v3
8.6
EPSS
0.0014
EPSS Percentile
33.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1321
Status
published
Products (4)
conform-to/dom
1.0.0 - 1.1.1npm
conform-to/yup
1.0.0 - 1.1.1npm
conform-to/zod
1.0.0 - 1.1.1npm
edmundhung/conform
< 1.1.1
Published
Apr 23, 2024
Tracked Since
Feb 18, 2026