{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "fa6999e326fe7851ecbd572b8cb9be8e930ebf41"
            },
            {
              "fixed": "dd25bd9b0f36849808bd7625dcc59dd4c1aeef3e"
            },
            {
              "fixed": "ecc3b8691c1935f9f3e4eb964ab11e40fdec17f5"
            },
            {
              "fixed": "013a4484f061a2b41f052e25c0015203287e63f1"
            },
            {
              "fixed": "8fa3e9435a13c335efb63fb4f4e77531a0031159"
            },
            {
              "fixed": "a9ae0f6dd45c3ccc1d69363f7aea8af179122730"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.10.0"
            },
            {
              "fixed": "6.6.151"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68451.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Validate length for CCA ECC private key requests\n\ncca_ecc2protkey() derives the copy length for the CPRB parameter\nblock directly from the length field in the key token. Reject the\nrequest early if the token length exceeds the available space in the\nparameter block.",
  "id": "CVE-2026-68451",
  "modified": "2026-08-15T11:31:09.285847186Z",
  "published": "2026-08-13T13:59:53.674Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/013a4484f061a2b41f052e25c0015203287e63f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fa3e9435a13c335efb63fb4f4e77531a0031159"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9ae0f6dd45c3ccc1d69363f7aea8af179122730"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd25bd9b0f36849808bd7625dcc59dd4c1aeef3e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecc3b8691c1935f9f3e4eb964ab11e40fdec17f5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68451.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68451"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "s390/zcrypt: Validate length for CCA ECC private key requests"
}