freeipa — security advisory

{
  "id": "b83d5147aa06b63d70b7831bbf181f244da76be83ac3d81922ea2dffa9cad574",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-76578",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-76578",
    "summary": "A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.",
    "evidence": "osv:DEBIAN-CVE-2026-76578",
    "products": [
      {
        "name": {
          "value": "freeipa",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "4.10.1+dfsg1-1+exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.10.1-1+exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.10.2-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.10.2-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.10.2-2+exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.11.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.11.1-1+exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.11.1-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.11.1-2+exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.11.1-2.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.12.2-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.12.2-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.12.2-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.12.4-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.12.4-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.13.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.9.11-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.9.11-1+exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.9.11-2",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "freeipa",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "4.12.4-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.12.4-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.13.1-1",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2026-76578",
      "aliases": [
        "DEBIAN-CVE-2026-76578"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "freeipa",
            "purl": "pkg:deb/debian/freeipa?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "4.10.1+dfsg1-1+exp1",
            "4.10.1-1+exp1",
            "4.10.2-1",
            "4.10.2-2",
            "4.10.2-2+exp1",
            "4.11.1-1",
            "4.11.1-1+exp1",
            "4.11.1-2",
            "4.11.1-2+exp1",
            "4.11.1-2.1",
            "4.12.2-1",
            "4.12.2-2",
            "4.12.2-3",
            "4.12.4-1",
            "4.12.4-2",
            "4.13.1-1",
            "4.9.11-1",
            "4.9.11-1+exp1",
            "4.9.11-2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-76578.json"
          },
          "ecosystem_specific": {
            "urgency": "unimportant"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "freeipa",
            "purl": "pkg:deb/debian/freeipa?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "4.12.4-1",
            "4.12.4-2",
            "4.13.1-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-76578.json"
          },
          "ecosystem_specific": {
            "urgency": "unimportant"
          }
        }
      ],
      "modified": "2026-10-31T09:47:33.276078609Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-76578"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-76578"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-76578",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 461294,
  "published_at": "2026-09-07T13:20:36.85+00:00"
}