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UnratedFix available

krb5: Fix of 2 CVEs

Type: advisorySources: OSV

- CVE-2026-107778: avoid NULL pointer dereference in krb5_rd_cred() make_cred_list() - CVE-2026-107708: fix error handling in KDC PAC processing get_pac_princ_with_realm()

Products
krb5-devel, krb5-libs, krb5-pkinit, krb5-server, krb5-server-ldap, krb5-tests, krb5-workstation, libkadm5
Affected versions
Not specified
Fixed versions
1.21.1-8.el9_6.tuxcare.els2
CVEs
CVE-2026-107708, CVE-2026-107778
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:49 UTC · Revision 1

Source evidence

krb5: Fix of 2 CVEs

core-osv · Original source

Published 12 Oct 2026, 13:18 UTC

- CVE-2026-107778: avoid NULL pointer dereference in krb5_rd_cred() make_cred_list() - CVE-2026-107708: fix error handling in KDC PAC processing get_pac_princ_with_realm()

osv:CLSA-2026-1791811122

krb5-devel

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

krb5-libs

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

krb5-pkinit

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

krb5-server

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

krb5-server-ldap

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

krb5-tests

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

krb5-workstation

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

libkadm5

Fixed versions: 1.21.1-8.el9_6.tuxcare.els2

Complete source record
{
  "id": "a3b87491f3cb37cd9883e3fc5f85ccf1a29397de05a956f677c4e12987cadd87",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1791811122",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "krb5: Fix of 2 CVEs",
    "summary": "- CVE-2026-107778: avoid NULL pointer dereference in krb5_rd_cred() make_cred_list() - CVE-2026-107708: fix error handling in KDC PAC processing get_pac_princ_with_realm()",
    "evidence": "osv:CLSA-2026-1791811122",
    "products": [
      {
        "name": {
          "value": "krb5-devel",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "krb5-libs",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "krb5-pkinit",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "krb5-server",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "krb5-server-ldap",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "krb5-tests",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "krb5-workstation",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libkadm5",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.21.1-8.el9_6.tuxcare.els2",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1791811122",
      "aliases": [
        "CLSA-2026-1791811122"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5-devel",
            "purl": "pkg:rpm/tuxcare/krb5-devel?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5-libs",
            "purl": "pkg:rpm/tuxcare/krb5-libs?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5-pkinit",
            "purl": "pkg:rpm/tuxcare/krb5-pkinit?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5-server",
            "purl": "pkg:rpm/tuxcare/krb5-server?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5-server-ldap",
            "purl": "pkg:rpm/tuxcare/krb5-server-ldap?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5-tests",
            "purl": "pkg:rpm/tuxcare/krb5-tests?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "krb5-workstation",
            "purl": "pkg:rpm/tuxcare/krb5-workstation?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.21.1-8.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "libkadm5",
            "purl": "pkg:rpm/tuxcare/libkadm5?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1791811122.json"
          }
        }
      ],
      "modified": "2026-10-26T09:43:25.961873059Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-107708",
        "CVE-2026-107778"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1791811122.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-107708",
        "https://nvd.nist.gov/vuln/detail/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": 449918,
  "published_at": "2026-10-12T13:18:53+00:00"
}