Security advisory

{
  "id": "c97cb3b63dd076d425b3bfb195a52c8edebeadbe1d2c52fef7155c566e6255c7",
  "url": "https://osv.dev/vulnerability/CVE-2022-28946",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-28946",
    "summary": "An issue in the component ast/parser.go of Open Policy Agent v0.39.0 causes the application to incorrectly interpret every expression, causing a Denial of Service (DoS) via triggering out-of-range memory access.",
    "evidence": "osv:CVE-2022-28946",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-28946",
      "aliases": [
        "CVE-2022-28946",
        "GHSA-x7f3-62pm-9p38",
        "GO-2022-0587"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/open-policy-agent/opa",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cc965f633e3769de51f7e92f8caf40ba0328ab1d"
                },
                {
                  "fixed": "e9d3828db670cbe11129885f37f08cbf04935264"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openpolicyagent:open_policy_agent:0.39.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.39.0"
                      },
                      {
                        "last_affected": "0.39.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e9d3828db670cbe11129885f37f08cbf04935264"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.39.0",
            "v0.39.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-28946.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.972283160Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/28xxx/CVE-2022-28946.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-28946",
        "https://github.com/open-policy-agent/opa/commit/e9d3828db670cbe11129885f37f08cbf04935264"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/28xxx/CVE-2022-28946.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-28946",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 491348,
  "published_at": "2022-05-19T18:03:47+00:00"
}