CVE-2021-4435

Yarn: untrusted search path

At a glance

Severity: HIGH 7.7
EPSS: EPSS 0.30 % · percentile 23 (2026-10-28)
State: PUBLISHED
Published: 2024-02-04
Updated: 2025-06-17
Assigner: fedora
NVD status: Modified

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.7	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H	fedora
CVSS 3.1	HIGH 7.7	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H	NVD · patrick@puiterwijk.org (Secondary)
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-426

Advisories

GHSA-mpwj-fcr6-x34c — Yarn untrusted search path vulnerability

European references

ENISA EUVD · EUVD-2024-0674
GCVE · GCVE-0-2021-4435

Affected configurations (NVD CPE)

cpe:2.3:a:yarnpkg:yarn:*:*:*:*:*:*:*:* < 1.22.13

Affected products

Product	Versions
yarn	unaffected 1.22.13
Fedora · Fedora
Fedora · Extra Packages for Enterprise Linux

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD