{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "= 2.4.0"
              },
              {
                "last_affected": "= 2.4.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "a7fe631d96c08fb14cf8eff0afdc280e99c30a94"
            },
            {
              "last_affected": "a7fe631d96c08fb14cf8eff0afdc280e99c30a94"
            }
          ],
          "repo": "https://github.com/containerd/containerd",
          "type": "GIT"
        }
      ],
      "versions": [
        "= 2.4.0"
      ]
    }
  ],
  "aliases": [
    "GHSA-pg57-6jwg-q645"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400",
      "CWE-770",
      "CWE-834"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53493.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "2.0.0"
          },
          {
            "fixed": "2.0.13"
          },
          {
            "fixed": "1.7.36"
          },
          {
            "introduced": "2.1.0"
          },
          {
            "fixed": "2.2.9"
          },
          {
            "introduced": "2.3.0"
          },
          {
            "fixed": "2.3.6"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "containerd is an open-source container runtime. Prior to versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1, a crafted OCI index graph can force very high CPU/memory usage during PullImage (before container start), causing long ContainerCreating stalls and, at larger sizes, node/runtime instability. Versions 1.7.36, 2.0.13, 2.2.9, 2.3.6, and 2.4.1 fix the issue.",
  "id": "CVE-2026-53493",
  "modified": "2026-09-27T03:30:23.082409205Z",
  "published": "2026-09-25T00:06:43.298Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53493.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/containerd/containerd/security/advisories/GHSA-pg57-6jwg-q645"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53493"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Containerd has image-pull DoS via crafted OCI index graph amplification"
}