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High

Security advisory

Type: advisorySources: OSVCVE: 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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-4435
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 11:22 UTC · Revision 1

Source evidence

CVE-2021-4435

core-osv · Original source

Published 4 Feb 2024, 20:15 UTC

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.

osv:CVE-2021-4435
Complete source record
{
  "id": "c24a053db12a8bb17458f012a16fcd843751a48f3552ffad5828da4a4ef00136",
  "url": "https://osv.dev/vulnerability/CVE-2021-4435",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-4435",
    "summary": "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.",
    "evidence": "osv:CVE-2021-4435",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-4435",
      "aliases": [
        "CVE-2021-4435",
        "GHSA-mpwj-fcr6-x34c"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/yarnpkg/yarn",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1c92d6980a4d385993c689c577c627de5face64d"
                },
                {
                  "fixed": "67fcce88935e45092ffa2674c08053f1ef5268a1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:yarnpkg:yarn:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.22.13"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "67fcce88935e45092ffa2674c08053f1ef5268a1"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1c92d6980a4d385993c689c577c627de5face64d"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.22.13"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.22.11",
            "1.22.11",
            "v1.22.10",
            "1.22.10",
            "v1.22.5",
            "v1.22.4",
            "v1.22.3",
            "v1.22.2",
            "v1.22.1",
            "v1.22.0",
            "v1.21.0",
            "v1.19.0",
            "v1.18.0",
            "v1.17.0",
            "v1.16.0",
            "v1.15.0",
            "v1.14.0",
            "v1.13.0",
            "v1.12.0",
            "v1.11.0",
            "v1.10.0",
            "v1.9.0",
            "v1.8.0",
            "v1.7.0",
            "v1.6.0",
            "v1.5.0",
            "v1.4.1",
            "v1.4.0",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v0.28.0",
            "v0.27.0",
            "v0.26.0",
            "v0.25.0",
            "v0.23.0",
            "v0.22.0",
            "v0.21.0",
            "v0.21.0-pre",
            "v0.20.0",
            "v0.19.0",
            "v0.20.0-0",
            "v0.18.0",
            "v0.17.0",
            "v0.18.0-0",
            "v0.19.0-0",
            "v0.17.0-0",
            "v0.15.0",
            "v0.15.1",
            "v0.14.0",
            "v0.13.0",
            "v0.12.0",
            "v0.11.0",
            "v0.10.0",
            "v0.9.0",
            "v0.8.0",
            "v0.7.1",
            "v0.7.0",
            "pre-release"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4435.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:09.697380956Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/security/cve/CVE-2021-4435",
        "https://github.com/yarnpkg/yarn/releases/tag/v1.22.13",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2262284",
        "https://github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-4435",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384908,
  "published_at": "2024-02-04T20:15:45.657+00:00"
}