OpenTofu v1.13.2 security fixes

{
  "id": "d888027086a5f0aab0fef3cf10fbd92b768f99394a7f1206dee3d7e391d47e01",
  "url": "https://github.com/opentofu/opentofu/releases/tag/v1.13.2",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "OpenTofu v1.13.2 security fixes",
    "summary": "OpenTofu v1.13.2 addresses excessive CPU usage when installing dependencies against an attacker-controlled HTTP/2 server and filters out compromised intermediate certificates.",
    "evidence": "SECURITY ADVISORIES: Previous versions of OpenTofu could potentially experience excessive CPU usage if connecting to an attacker-controlled HTTP2 server while installing dependencies in tofu init. (#4681) Filter out compromised intermediate certificates (#4750)",
    "products": [
      {
        "name": {
          "value": "OpenTofu",
          "evidence": "Previous versions of OpenTofu"
        },
        "prerequisites": [
          {
            "value": "connecting to an attacker-controlled HTTP2 server while installing dependencies in tofu init",
            "evidence": "if connecting to an attacker-controlled HTTP2 server while installing dependencies in tofu init"
          }
        ],
        "fixed_versions": [
          {
            "value": "v1.13.2",
            "evidence": "v1.13.2"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "github-opentofu-opentofu",
  "document_id": 22057,
  "published_at": "2026-10-21T14:36:09+00:00"
}