{
  "$schema": "https://docs.oasis-open.org/csaf/csaf/v2.1/schema/csaf.json",
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.1",
    "distribution": {
      "tlp": {
        "label": "RED"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Generated from an analysis of SBOM wto-1.12.json (spdx-json, sha256 8e2ab88522e746652beea782f8ee9f1d50ca1a6dd2111e40475a185358b9e757)."
      },
      {
        "category": "general",
        "text": "This advisory is based on an INCOMPLETE analysis. The following analyzers did not produce results, so components they would have covered may carry vulnerabilities not listed here: shieldbom (fail).",
        "title": "Analysis coverage"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "security@ndaal.eu",
      "name": "ndaal Gesellschaft fuer Sicherheit in der Informationstechnik mbH & Co KG",
      "namespace": "https://ndaal.eu/csaf"
    },
    "references": [
      {
        "category": "self",
        "summary": "This advisory",
        "url": "https://ndaal.eu/csaf/ndaal-sba-2912-0480"
      }
    ],
    "title": "Vulnerabilities found in SBOM wto-1.12.json",
    "tracking": {
      "current_release_date": "2026-09-20T20:01:53Z",
      "generator": {
        "engine": {
          "name": "ndaal SBOM Auditor",
          "version": "1.6.26"
        }
      },
      "id": "ndaal-sba-2912-0480",
      "initial_release_date": "2026-09-20T20:01:53Z",
      "revision_history": [
        {
          "date": "2026-09-20T20:01:53Z",
          "number": "1.0.0",
          "summary": "Initial advisory generated from an SBOM analysis."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "full_product_names": [
      {
        "name": "krb5-libs@1.21.1-10.el9_8",
        "product_id": "CSAFPID-0001",
        "product_identification_helper": {
          "purls": [
            "pkg:rpm/redhat/krb5-libs@1.21.1-10.el9_8?arch=x86_64&distro=rhel-9.8&upstream=krb5-1.21.1-10.el9_8.src.rpm"
          ]
        }
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-11850",
      "notes": [
        {
          "category": "description",
          "text": "An integer underflow vulnerability was found in MIT krb5 in the berval2tl_data() function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c. The function performs an unsigned subtraction (bv_len - 2) without a prior bounds check. When bv_len is 0 or 1, the subtraction wraps to a large value which is then truncated to uint16_t, yielding 0xFFFE (65534) or 0xFFFF (65535). The subsequent malloc succeeds and memcpy reads up to 65534 bytes from a 0-1 byte buffer, resulting in a heap out-of-bounds read.\nThe attack vector involves a malicious or compromised LDAP KDB backend returning a krbExtraData attribute with bv_len < 2, triggering the underflow when the KDC or kadmind reads principal data."
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001"
        ]
      },
      "metrics": [
        {
          "content": {
            "cvss_v3": {
              "version": "3.1",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H",
              "baseScore": 5.0,
              "baseSeverity": "MEDIUM",
              "attackVector": "NETWORK",
              "attackComplexity": "HIGH",
              "privilegesRequired": "HIGH",
              "userInteraction": "NONE",
              "scope": "UNCHANGED",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "availabilityImpact": "HIGH"
            }
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ],
      "title": "CVE-2026-11850"
    }
  ]
}