{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "11.0.0"
              },
              {
                "fixed": "11.11.0"
              },
              {
                "introduced": "10.7.0"
              },
              {
                "fixed": "10.34.5"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "8aeeff4c46b939707fcb973c444c44809f691ef5"
            },
            {
              "fixed": "8e1e4c0aaece387dfda16377b2ba31f7a1a2602c"
            },
            {
              "introduced": "bd4caa505184c93a623595ecbb15edcf2ab24161"
            },
            {
              "fixed": "702ad5f860ffd50d64a3a711d9f8a3da16fc796e"
            }
          ],
          "repo": "https://github.com/pnpm/pnpm",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-vx52-2968-3vc6"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-201"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101043.json"
  },
  "details": "pnpm versions 11.0.0 before 11.11.0 and 10.7.0 before 10.34.5 expand ${VAR} environment-variable placeholders in the httpProxy, httpsProxy, and noProxy settings read from a project's pnpm-workspace.yaml. Because the manifest is repository-controlled and the proxy keys were omitted from the request-destination key set that otherwise suppresses placeholder expansion for untrusted manifests (as already done for registry, pnprServer, registries and namedRegistries), an attacker who controls a repository's pnpm-workspace.yaml can cause a victim who clones the repository and runs a pnpm command (e.g. pnpm install) to expand environment secrets such as NPM_TOKEN or GITHUB_TOKEN into a proxy hostname or userinfo and route install traffic — and the corresponding DNS lookups — through an attacker-controlled host. The exfiltration occurs during configuration loading, before any lifecycle script executes. Fixed in pnpm 11.11.0 and 10.34.5.",
  "id": "CVE-2026-101043",
  "modified": "2026-09-29T03:30:20.888856235Z",
  "published": "2026-09-27T17:02:33.119Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101043.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-vx52-2968-3vc6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101043"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/pnpm-11.0.0-before-11.11.0-environment-variable-exfiltration-via-proxy-settings"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "pnpm 11.0.0 before 11.11.0 Environment Variable Exfiltration via Proxy Settings"
}