{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.25.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ae970aaa9bc76ec93d748bdaf03fd7523b6b6a62"
            }
          ],
          "repo": "https://github.com/fission/fission",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q6vm-xqc9-v3ff"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50567.json"
  },
  "details": "Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory via filepath.Join and wrote the result without checking whether the resolved path stayed under the destination. A zip entry named ../../tmp/evil therefore landed at /tmp/evil. An attacker who could control a Package.Spec.Source.URL or Deployment.URL archive could induce the fetcher (running as the per-environment pod's fission-fetcher sidecar) to write files anywhere that process could reach: into other tenants' /packages/\u003cns\u003e/ directories, into mounted secret/config volumes, or into the fetcher's own binary. This issue has been patched in version 1.25.0.",
  "id": "CVE-2026-50567",
  "modified": "2026-08-12T03:51:10.100198103Z",
  "published": "2026-06-10T17:30:45.695Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/fission/fission/releases/tag/v1.25.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50567.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/fission/fission/security/advisories/GHSA-q6vm-xqc9-v3ff"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50567"
    },
    {
      "type": "FIX",
      "url": "https://github.com/fission/fission/pull/3444"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Fission: Zip Slip in pkg/utils/zip.go:Unarchive allows fetcher to write outside the destination directory"
}