CVE-2021-4435: yarn — Fix

Description

An untrusted search path vulnerability was found in Yarn. When a victim runs certain Yarn commands in a directory with attacker-controlled content, malicious commands could be executed in unexpected ways.

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CVSS v3.1 Score

7.7

HIGH

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

Weakness Type (CWE)

CWE-426 CWE-426

Affected Products

Vendor	Product	Versions
yarnpkg	yarn	< 1.22.13

References

Advisories & Patches

https://github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1 https://github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1

Other References

https://access.redhat.com/security/cve/CVE-2021-4435 https://bugzilla.redhat.com/show_bug.cgi?id=2262284 https://github.com/yarnpkg/yarn/releases/tag/v1.22.13 https://access.redhat.com/security/cve/CVE-2021-4435 https://bugzilla.redhat.com/show_bug.cgi?id=2262284 https://github.com/yarnpkg/yarn/releases/tag/v1.22.13

Frequently Asked Questions

What is CVE-2021-4435? +

An untrusted search path vulnerability was found in Yarn. When a victim runs certain Yarn commands in a directory with attacker-controlled content, malicious commands could be executed in unexpected ways. It has a CVSS v3.1 base score of 7.7 (HIGH).

How severe is CVE-2021-4435? +

CVE-2021-4435 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2021-4435? +

CVE-2021-4435 affects products from yarnpkg, specifically: yarn. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-4435? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2021-4435