TuxCare security update for yarn (3 CVEs)

{
  "id": "b942f140db08f41b7e971ab4fce646c3749216734743e1c652a093bb0aec902d",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1786471987",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "TuxCare security update for yarn (3 CVEs)",
    "summary": "TuxCare rebuilt yarn to address 3 CVEs. Fixed in 1.21.0-tuxcare.1.",
    "evidence": "osv:CLSA-2026-1786471987",
    "products": [
      {
        "name": {
          "value": "yarn",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.0-tuxcare.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.21.0",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1786471987",
      "aliases": [
        "CLSA-2026-1786471987"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "1.21.0-tuxcare.0"
                },
                {
                  "fixed": "1.21.0-tuxcare.1"
                }
              ]
            }
          ],
          "package": {
            "name": "yarn",
            "purl": "pkg:npm/yarn",
            "ecosystem": "TuxCare:npm"
          },
          "versions": [
            "1.21.0"
          ],
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_lang/npm/CLSA-2026-1786471987.json",
            "tuxcare": {
              "base_version": "1.21.0",
              "fixed_version": "1.21.0-tuxcare.1"
            }
          }
        }
      ],
      "modified": "2026-10-15T09:45:59.896663024Z",
      "provider": "osv",
      "upstream": [
        "CVE-2019-10773",
        "CVE-2020-8131",
        "CVE-2021-4435"
      ],
      "references": []
    },
    "related_cves": [
      {
        "value": "CVE-2019-10773",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2020-8131",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2021-4435",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 326736,
  "published_at": "2026-08-11T18:13:07+00:00"
}