ztunnel-1.27 — security advisory

{
  "id": "03529aee54b771200046dc6bb986782c1107d1d534551bd7864d4753bea0d607",
  "url": "https://osv.dev/vulnerability/CGA-7r37-vcjx-g7jm",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-7r37-vcjx-g7jm",
    "summary": "CGA-7r37-vcjx-g7jm",
    "evidence": "osv:CGA-7r37-vcjx-g7jm",
    "products": [
      {
        "name": {
          "value": "ztunnel-1.27",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CGA-7r37-vcjx-g7jm",
      "aliases": [
        "CGA-7r37-vcjx-g7jm"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "ztunnel-1.27",
            "purl": "pkg:apk/chainguard/ztunnel-1.27?arch=aarch64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-7r37-vcjx-g7jm.json"
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "hickory-resolver",
                "component_purl": "pkg:cargo/hickory-resolver@0.25.1",
                "component_type": "rust-crate",
                "component_version": "0.25.1",
                "component_location": "/usr/bin/ztunnel",
                "latest_event_status": "fix_not_planned",
                "latest_event_timestamp": "2026-10-07T02:21:38Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-07T04:30:30.726558848Z",
      "provider": "osv",
      "upstream": [
        "GHSA-6f2x-v7q7-m7m5"
      ],
      "references": [
        "https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-6f2x-v7q7-m7m5",
        "https://github.com/hickory-dns/hickory-dns/pull/3871",
        "https://github.com/hickory-dns/hickory-dns/commit/4689fc8d3ddd3e3f99ec1b7be4e2e9e78afd2e6b",
        "https://github.com/hickory-dns/hickory-dns/commit/ccd6952378f250c714fc2af0cb1053e1c179f832",
        "https://github.com/hickory-dns/hickory-dns",
        "https://github.com/hickory-dns/hickory-dns/releases/tag/v0.26.2"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 92675,
  "published_at": "2026-10-06T12:48:33+00:00"
}