Security advisory

{
  "id": "9144879a672f3b427ba29cfdfc234b553ae407e6c96b0dbb253b472186aa7e2a",
  "url": "https://osv.dev/vulnerability/CVE-2021-30130",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-30130",
    "summary": "phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.",
    "evidence": "osv:CVE-2021-30130",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-30130",
      "aliases": [
        "CVE-2021-30130",
        "GHSA-vf4w-fg7r-5v94"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phpseclib/phpseclib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "233a920cb38636a43b18d428f9a8db1f0a1a08f4"
                },
                {
                  "introduced": "fe62c85e0203503231d489af95d0ac053b7d3575"
                },
                {
                  "fixed": "d369510df0ebd5e1a5d0fe3d4d23c55fa87a403d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.31"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0"
                      },
                      {
                        "fixed": "3.0.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "233a920cb38636a43b18d428f9a8db1f0a1a08f4"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.0.31"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d369510df0ebd5e1a5d0fe3d4d23c55fa87a403d"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "3.0.7"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.0.6",
            "3.0.5",
            "3.0.4",
            "3.0.3",
            "3.0.2",
            "3.0.1",
            "2.0.30",
            "3.0.0",
            "2.0.29",
            "2.0.28",
            "2.0.27",
            "2.0.26",
            "2.0.25",
            "2.0.24",
            "2.0.23",
            "2.0.22",
            "2.0.21",
            "2.0.20",
            "2.0.19",
            "2.0.18",
            "2.0.17",
            "2.0.16",
            "2.0.15",
            "2.0.14",
            "2.0.13",
            "2.0.12",
            "2.0.11",
            "2.0.10",
            "2.0.9",
            "2.0.7",
            "2.0.6",
            "2.0.5",
            "2.0.4",
            "2.0.3",
            "2.0.0",
            "0.3.0",
            "0.2.2",
            "0.2.1",
            "0.2.0",
            "0.1.5",
            "0.1.2",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-30130.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:40.184511316Z",
      "provider": "osv",
      "references": [
        "https://github.com/phpseclib/phpseclib/releases/tag/2.0.31",
        "https://github.com/phpseclib/phpseclib/releases/tag/3.0.7",
        "https://lists.debian.org/debian-lts-announce/2022/11/msg00024.html",
        "https://lists.debian.org/debian-lts-announce/2022/11/msg00025.html",
        "https://github.com/phpseclib/phpseclib/pull/1635"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-30130",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385837,
  "published_at": "2021-04-06T15:15:13.497+00:00"
}