Arbitrary Code Execution via Crafted Bytecode in dendibakh/perf-ninja

{
  "id": "8abab14c4c798e8bf6ad830f9e2bdd530b01afaea0426fb38955966bc6c947cc",
  "url": "https://osv.dev/vulnerability/CVE-2026-4745",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Arbitrary Code Execution via Crafted Bytecode in dendibakh/perf-ninja",
    "summary": "Improper Control of Generation of Code ('Code Injection') vulnerability in dendibakh perf-ninja (labs/misc/pgo/lua modules). This vulnerability is associated with program files ldo.C. This issue affects perf-ninja.",
    "evidence": "osv:CVE-2026-4745",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-4745",
      "aliases": [
        "CVE-2026-4745"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:N/AU:Y/R:U/V:D/RE:L/U:Amber"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dendibakh/perf-ninja",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4745.json"
          }
        }
      ],
      "modified": "2026-10-26T10:45:14.496671879Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4745.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-4745",
        "https://github.com/dendibakh/perf-ninja/pull/129",
        "https://github.com/dendibakh/perf-ninja"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-94"
        ],
        "cna_assigner": "GovTech CSG",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4745.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-4745",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 450304,
  "published_at": "2026-03-24T03:27:30.756+00:00"
}