Security update for krb5

{
  "id": "15a9edf1a2dc5d9eafc4a750624278a9afe23a2e4ff851a46c76bbf866b1c0af",
  "url": "https://osv.dev/vulnerability/SUSE-SU-2026%3A4906-1",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Security update for krb5",
    "summary": "This update for krb5 fixes the following issues: - CVE-2026-107708: Denial of Service via malformed PAC in S4U2Proxy requests (bsc#1284816). - CVE-2026-107778: Denial of Service via crafted forwarded credentials (bsc#1284817).",
    "evidence": "osv:SUSE-SU-2026:4906-1",
    "products": [
      {
        "name": {
          "value": "krb5",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.20.1-150500.3.26.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "SUSE-SU-2026:4906-1",
      "aliases": [
        "SUSE-SU-2026:4906-1"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.20.1-150500.3.26.1"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5",
            "purl": "pkg:rpm/suse/krb5&distro=SUSE%20Linux%20Enterprise%20Micro%205.5",
            "ecosystem": "SUSE:Linux Enterprise Micro 5.5"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4906-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "krb5": "1.20.1-150500.3.26.1",
                "krb5-client": "1.20.1-150500.3.26.1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-26T20:15:05.605469378Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-107708",
        "CVE-2026-107778"
      ],
      "references": [
        "https://www.suse.com/support/update/announcement/2026/suse-su-20264906-1/",
        "https://bugzilla.suse.com/1284816",
        "https://bugzilla.suse.com/1284817",
        "https://www.suse.com/security/cve/CVE-2026-107708",
        "https://www.suse.com/security/cve/CVE-2026-107778"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-107708",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-107778",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 458970,
  "published_at": "2026-10-26T07:20:52+00:00"
}