Security advisory

{
  "id": "deae5c256000a18dabc5855748be3b9de2794acb03768c068f43a1ad3fe0ab27",
  "url": "https://osv.dev/vulnerability/CVE-2023-34409",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-34409",
    "summary": "In Percona Monitoring and Management (PMM) server 2.x before 2.37.1, the authenticate function in auth_server.go does not properly formalize and sanitize URL paths to reject path traversal attempts. This allows an unauthenticated remote user, when a crafted POST request is made against unauthenticated API routes, to access otherwise protected API routes leading to escalation of privileges and information disclosure.",
    "evidence": "osv:CVE-2023-34409",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2023-34409",
      "aliases": [
        "CVE-2023-34409"
      ],
      "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/percona/pmm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "94232076c12a4511f4f1d48988b56ab2bfd24286"
                },
                {
                  "fixed": "03b95b3d05401a268eda3158db739f5f11a619de"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:percona:monitoring_and_management:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "fixed": "2.37.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.37.0",
            "v2.28.0",
            "v2.27.0",
            "v2.26.0",
            "v2.25.0",
            "v2.24.0",
            "v2.23.0",
            "v2.22.0",
            "v2.21.0",
            "v2.20.0",
            "v2.19.0",
            "v2.18.0",
            "v2.17.0",
            "v2.16.0",
            "v2.15.1",
            "v2.15.0",
            "v2.14.0",
            "v2.13.0",
            "v2.12.0",
            "v2.11.1",
            "v2.11.0",
            "v2.10.1",
            "v2.10.0",
            "v2.9.1",
            "v2.9.0",
            "v2.8.0",
            "v2.7.0",
            "v2.6.1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.0",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-34409.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:47.776318528Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34409.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-34409",
        "https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34409.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-34409",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 515824,
  "published_at": "2023-06-06T00:00:00+00:00"
}