Security advisory

{
  "id": "f0c79b813b45bca37a66f5a80e9ff97c0af4fd3c39274bd6855567d384a32f66",
  "url": "https://osv.dev/vulnerability/CVE-2021-29476",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-29476",
    "summary": "Requests is a HTTP library written in PHP. Requests mishandles deserialization in FilteredIterator. The issue has been patched and users of `Requests` 1.6.0, 1.6.1 and 1.7.0 should update to version 1.8.0.",
    "evidence": "osv:CVE-2021-29476",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-29476",
      "aliases": [
        "CVE-2021-29476",
        "GHSA-52qp-jpq7-6c54"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wordpress/requests",
              "type": "GIT",
              "events": [
                {
                  "introduced": "756374edd59ac69268ed35481a506ebd4e732525"
                },
                {
                  "last_affected": "87932f52ffad70504d93f04f15690cf16a089546"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wordpress:requests:1.6.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.6.0"
                      },
                      {
                        "last_affected": "1.6.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:wordpress:requests:1.6.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.6.1"
                      },
                      {
                        "last_affected": "1.6.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:wordpress:requests:1.7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.7.0"
                      },
                      {
                        "last_affected": "1.7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.6.0",
            "1.6.1",
            "1.7.0",
            "v1.7.0",
            "v1.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29476.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:38.430466801Z",
      "provider": "osv",
      "references": [
        "https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54",
        "https://github.com/rmccue/Requests/pull/421"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-29476",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385787,
  "published_at": "2021-04-27T21:15:08.107+00:00"
}