{
  "id": "CVE-2026-104034",
  "url": "https://spydr.io/cve/CVE-2026-104034",
  "published": "2026-10-06T01:16:34.273Z",
  "modified": "2026-10-06T15:17:11.980Z",
  "score": 4.7,
  "severity": "medium",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "score_source": "redhat.com",
  "epss": 0.00089,
  "epss_percentile": 0.00374,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": "none",
  "vendors": [
    "Red Hat"
  ],
  "products": [
    "Red Hat Enterprise Linux 10",
    "Red Hat Enterprise Linux 6",
    "Red Hat Enterprise Linux 7",
    "Red Hat Enterprise Linux 8",
    "Red Hat Enterprise Linux 9",
    "Red Hat OpenShift Container Platform 4"
  ],
  "cwes": [
    "CWE-825"
  ],
  "description": "A flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager (KCM) responder during Kerberos ticket-granting ticket (TGT) renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos ticket can trigger this issue on systems configured with KCM renewal, causing the KCM responder service to crash and resulting in a Denial of Service (DoS).",
  "status": "Awaiting Analysis",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 4.7,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-104034",
      "tags": []
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479178",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104034",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}