GitHub Advisoryadvisory · npm

GHSA-rh46-3fgc-mvrf Validation bypass is possible in Json Pattern Validator

MEDIUM Published 2019-12-04 Modified 2021-08-19 Official page ↗
Aliases
CVE-2019-19507
Ecosystem
npm
Packages
jpv
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-287
Reviewed
2019-12-04

Affected packages

• npm jpv: < 2.1.1 → fixed in 2.1.1

Description

In jpv (aka Json Pattern Validator) before 2.1.1, compareCommon() can be bypassed because certain internal attributes can be overwritten via a conflicting name, as demonstrated by 'constructor': {'name':'Array'}. This affects validate(). Hence, a crafted payload can overwrite this builtin attribute to manipulate the type detection result.

Related

Alias · CVE (1)

  • CVE-2019-19507 In jpv (aka Json Pattern Validator) before 2.1.1, compareCommon() can be bypassed because certain internal attributes can be overwritten… vulnerability

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References