Security fix for GHSA-grgv-6hw6-v9g4 applied in: jupyterhub-k8s-hub 4.3.5-r0, py3-jupyterhub 5.4.6-r0

{
  "id": "5c6562c678bab4ac4e26218276f98170a0e942a54df531afaf376c674760029d",
  "url": "https://osv.dev/vulnerability/CLEANSTART-2026-FF58262",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Security fix for GHSA-grgv-6hw6-v9g4 applied in: jupyterhub-k8s-hub 4.3.5-r0, py3-jupyterhub 5.4.6-r0",
    "summary": "GHSA-grgv-6hw6-v9g4 affects multiple packages. This issue is resolved in later releases. See references for individual vulnerability details.",
    "evidence": "osv:CLEANSTART-2026-FF58262",
    "products": [
      {
        "name": {
          "value": "jupyterhub-k8s-hub",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.3.5-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "py3-jupyterhub",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.6-r0",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CLEANSTART-2026-FF58262",
      "aliases": [
        "CLEANSTART-2026-FF58262"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.3.5-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "jupyterhub-k8s-hub",
            "purl": "pkg:apk/cleanstart/jupyterhub-k8s-hub",
            "ecosystem": "CleanStart"
          },
          "database_specific": {
            "source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-FF58262.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.4.6-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "py3-jupyterhub",
            "purl": "pkg:apk/cleanstart/py3-jupyterhub?arch=noarch",
            "ecosystem": "CleanStart"
          },
          "database_specific": {
            "source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-FF58262.json"
          }
        }
      ],
      "modified": "2026-10-15T12:58:18.733207365Z",
      "provider": "osv",
      "upstream": [
        "GHSA-grgv-6hw6-v9g4"
      ],
      "references": [
        "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-FF58262.json",
        "https://osv.dev/vulnerability/GHSA-grgv-6hw6-v9g4"
      ],
      "provider_metadata": {}
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 332333,
  "published_at": "2026-09-18T10:26:27.793331+00:00"
}