GHSA-p9pc-299p-vxgp

yargs-parser Vulnerable to Prototype Pollution

At a glance

Published
Updated
CVE
CVE-2020-7608
Aliases
SNYK-JS-YARGSPARSER-560381
CVSS_V3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Description

Affected versions of `yargs-parser` are vulnerable to prototype pollution. Arguments are not properly sanitized, allowing an attacker to modify the prototype of `Object`, causing the addition or modification of an existing property that will exist on all objects. Parsing the argument `--foo.__proto__.bar baz'` adds a `bar` property with value `baz` to all objects. This is only exploitable if attackers have control over the arguments being passed to `yargs-parser`. ## Recommendation Upgrade to versions 13.1.2, 15.0.1, 18.1.1 or later.

Affected packages

PackageVersions
npm · yargs-parserintroduced 6.0.0, fixed 13.1.2
npm · yargs-parserintroduced 14.0.0, fixed 15.0.1
npm · yargs-parserintroduced 16.0.0, fixed 18.1.1
npm · yargs-parserintroduced 0, fixed 5.0.1

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database