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sssd: Fix of 2 CVEs

Type: advisorySources: OSV

- CVE-2026-90462: deny access in sdap_access_ppolicy_step_done() when the LDAP ppolicy user search returns zero entries, instead of returning success and caching an allow decision - CVE-2026-90996: reject an empty request body in the NSS responder request parsers before body[blen - 1] is read

Products
libipa_hbac, libipa_hbac-devel, libsss_autofs, libsss_certmap, libsss_certmap-devel, libsss_idmap, libsss_idmap-devel, libsss_nss_idmap, libsss_nss_idmap-devel, libsss_simpleifp, libsss_simpleifp-devel, libsss_sudo, python3-libipa_hbac, python3-libsss_nss_idmap, python3-sss, python3-sss-murmur, python3-sssdconfig, sssd, sssd-ad, sssd-client, sssd-common, sssd-common-pac, sssd-dbus, sssd-idp, sssd-ipa, sssd-kcm, sssd-krb5, sssd-krb5-common, sssd-ldap, sssd-nfs-idmap, sssd-passkey, sssd-polkit-rules, sssd-proxy, sssd-tools, sssd-winbind-idmap
Affected versions
Not specified
Fixed versions
2.9.6-4.el9_6.2.tuxcare.els8
CVEs
CVE-2026-90462, CVE-2026-90996
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 10:56 UTC · Revision 1

Source evidence

sssd: Fix of 2 CVEs

core-osv · Original source

Published 12 Oct 2026, 12:44 UTC

- CVE-2026-90462: deny access in sdap_access_ppolicy_step_done() when the LDAP ppolicy user search returns zero entries, instead of returning success and caching an allow decision - CVE-2026-90996: reject an empty request body in the NSS responder request parsers before body[blen - 1] is read

osv:CLSA-2026-1791809045

libipa_hbac

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libipa_hbac-devel

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_autofs

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_certmap

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_certmap-devel

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_idmap

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_idmap-devel

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_nss_idmap

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_nss_idmap-devel

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_simpleifp

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_simpleifp-devel

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

libsss_sudo

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

python3-libipa_hbac

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

python3-libsss_nss_idmap

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

python3-sss

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

python3-sss-murmur

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

python3-sssdconfig

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-ad

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-client

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-common

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-common-pac

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-dbus

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-idp

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-ipa

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-kcm

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-krb5

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-krb5-common

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-ldap

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-nfs-idmap

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-passkey

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-polkit-rules

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-proxy

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-tools

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

sssd-winbind-idmap

Fixed versions: 2.9.6-4.el9_6.2.tuxcare.els8

Complete source record
{
  "id": "eb2e5dd8bea02692197e04eaf25bf144c4865f9647729f835be41c6e1e2c79a8",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1791809045",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "sssd: Fix of 2 CVEs",
    "summary": "- CVE-2026-90462: deny access in sdap_access_ppolicy_step_done() when the LDAP ppolicy user search returns zero entries, instead of returning success and caching an allow decision - CVE-2026-90996: reject an empty request body in the NSS responder request parsers before body[blen - 1] is read",
    "evidence": "osv:CLSA-2026-1791809045",
    "products": [
      {
        "name": {
          "value": "libipa_hbac",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libipa_hbac-devel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_autofs",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_certmap",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_certmap-devel",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_idmap",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_idmap-devel",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_nss_idmap",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_nss_idmap-devel",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_simpleifp",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/9/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_simpleifp-devel",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/10/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libsss_sudo",
          "evidence": "/affected/11/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/11/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python3-libipa_hbac",
          "evidence": "/affected/12/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/12/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python3-libsss_nss_idmap",
          "evidence": "/affected/13/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/13/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python3-sss",
          "evidence": "/affected/14/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/14/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python3-sss-murmur",
          "evidence": "/affected/15/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/15/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python3-sssdconfig",
          "evidence": "/affected/16/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/16/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd",
          "evidence": "/affected/17/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/17/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-ad",
          "evidence": "/affected/18/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/18/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-client",
          "evidence": "/affected/19/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/19/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-common",
          "evidence": "/affected/20/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/20/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-common-pac",
          "evidence": "/affected/21/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/21/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-dbus",
          "evidence": "/affected/22/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/22/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-idp",
          "evidence": "/affected/23/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/23/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-ipa",
          "evidence": "/affected/24/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/24/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-kcm",
          "evidence": "/affected/25/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/25/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-krb5",
          "evidence": "/affected/26/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/26/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-krb5-common",
          "evidence": "/affected/27/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/27/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-ldap",
          "evidence": "/affected/28/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/28/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-nfs-idmap",
          "evidence": "/affected/29/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/29/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-passkey",
          "evidence": "/affected/30/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/30/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-polkit-rules",
          "evidence": "/affected/31/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/31/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-proxy",
          "evidence": "/affected/32/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/32/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-tools",
          "evidence": "/affected/33/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/33/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sssd-winbind-idmap",
          "evidence": "/affected/34/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.6-4.el9_6.2.tuxcare.els8",
            "evidence": "/affected/34/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1791809045",
      "aliases": [
        "CLSA-2026-1791809045"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.6-4.el9_6.2.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libipa_hbac",
            "purl": "pkg:rpm/tuxcare/libipa_hbac?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-2026-1791809045.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.6-4.el9_6.2.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libipa_hbac-devel",
            "purl": "pkg:rpm/tuxcare/libipa_hbac-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-2026-1791809045.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.6-4.el9_6.2.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libsss_autofs",
            "purl": "pkg:rpm/tuxcare/libsss_autofs?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-2026-1791809045.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.6-4.el9_6.2.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libsss_certmap",
            "purl": "pkg:rpm/tuxcare/libsss_certmap?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-2026-1791809045.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.6-4.el9_6.2.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libsss_certmap-devel",
            "purl": "pkg:rpm/tuxcare/libsss_certmap-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-2026-1791809045.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.6-4.el9_6.2.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libsss_idmap",
            "purl": "pkg:rpm/tuxcare/libsss_idmap?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
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      ],
      "modified": "2026-10-26T09:31:36.619492357Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-90462",
        "CVE-2026-90996"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1791809045.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90462",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90996"
      ]
    },
    "related_cves": [
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        "value": "CVE-2026-90462",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-90996",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447838,
  "published_at": "2026-10-12T12:44:15+00:00"
}