CVE-2026-96620

{
  "etk_id": "ETK-2026-1808",
  "cve_id": "CVE-2026-96620",
  "display_id": "CVE-2026-96620",
  "ghsa_id": "GHSA-h4mw-j7qp-8mwm",
  "euvd_id": "EUVD-2026-103155",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Command argument injection in claude-agent-sdk resume handling",
  "summary": "Versions of the Python claude-agent-sdk before 0.2.121 mishandle values used to resume sessions. An attacker may cause commands to run outside the SDK's intended permission checks if an application passes attacker-controlled input as the resume session identifier.",
  "mitigation": "Upgrade claude-agent-sdk to version 0.2.121 or later. Until upgraded, do not use untrusted input to select or construct resume session identifiers.",
  "vendor": "pip",
  "product": "pip:claude-agent-sdk",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 0.2.121"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "0.2.121"
      ],
      "package_name": "claude-agent-sdk",
      "purl": "pkg:pypi/claude-agent-sdk"
    }
  ],
  "cwes": null,
  "cvss_score": 9.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0058,
  "epss_percentile": 0.4655,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 13.496065466666666,
  "t0_at": "2026-10-16T19:44:01.260000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-16T19:44:01.260000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T19:44:01.260000+00:00",
      "url": "https://github.com/advisories/GHSA-h4mw-j7qp-8mwm"
    }
  }
}