{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.22.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "8570e77819563e036027e1da789d08ec9333ed4d"
            }
          ],
          "repo": "https://github.com/krb5/krb5",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107778.json"
  },
  "details": "MIT Kerberos 5 (krb5) through 1.22.2 contains a NULL pointer dereference in make_cred_list() in rd_cred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticket_info entries through gss_accept_sec_context() to crash GSS-API acceptor services, causing denial of service.",
  "id": "CVE-2026-107778",
  "modified": "2026-10-09T10:30:28.860001148Z",
  "published": "2026-10-08T20:15:54.159Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107778.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/krb5/krb5"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/krb5/krb5/blob/krb5-1.22.2-final/src/lib/krb5/krb/rd_cred.c#L77-L112"
    },
    {
      "type": "FIX",
      "url": "https://github.com/krb5/krb5/commit/48afa9abb89ab2176bb20624d87d010b9984fc08"
    },
    {
      "type": "FIX",
      "url": "https://github.com/krb5/krb5/commit/62196e2b269159a5465f5b8d0ed7cf6f29c3282a"
    },
    {
      "type": "FIX",
      "url": "https://github.com/krb5/krb5/pull/1511"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107778"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/mit-krb5-through-1.22.2-null-pointer-dereference-via-krb5-rd-cred"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MIT krb5 through 1.22.2 NULL Pointer Dereference via krb5_rd_cred()"
}