{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "2.1.63"
              },
              {
                "fixed": "2.1.84"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "cd4956871a56b07d9d2a6cb538fae109d04c9d57"
            },
            {
              "fixed": "a0d9b87038e72d8a523b61c152ec53299ac6fe94"
            }
          ],
          "repo": "https://github.com/anthropics/claude-code",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q5hj-mxqh-vv77"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20",
      "CWE-77"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40068.json"
  },
  "details": "In versions 2.1.63 through 2.1.83 of Claude Code, the folder trust determination logic used the git worktree commondir file without validating its contents. An attacker could craft a malicious repository with a commondir file pointing to a path the victim had previously trusted, causing Claude Code to bypass its trust confirmation dialog and immediately execute hooks defined in `.claude/settings.json`. Exploitation requires the victim to clone the malicious repository and run Claude Code within it, and the attacker must know or guess a path the victim had already trusted. This issue has been fixed in version 2.1.84.",
  "id": "CVE-2026-40068",
  "modified": "2026-07-15T01:48:58.016505164Z",
  "published": "2026-05-05T20:52:26.089Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40068.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/anthropics/claude-code/security/advisories/GHSA-q5hj-mxqh-vv77"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40068"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Claude Code arbitrary code execution via git worktree commondir trust dialog bypass"
}