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UnratedFix available

389-ds-base: Fix of 5 CVEs

Type: advisorySources: OSV

- CVE-2026-18355: reject SASL packet lengths below the already-consumed offset in sasl_io_start_packet - CVE-2026-18453: avoid NULL pointer dereference in op_shared_search with paged results and USE_ONE_BACKEND - CVE-2026-18922: clear the stale SASL identity in the Cyrus SASL auxiliary property lookup - CVE-2026-76560: require a non-empty bind DN when evaluating SELFDN ACI bind rules - CVE-2026-78701: drain a buffered unencrypted UNBIND across recv calls instead of stalling the connection

Products
389-ds-base, 389-ds-base-devel, 389-ds-base-libs, 389-ds-base-snmp, python3-lib389
Affected versions
Not specified
Fixed versions
2.2.4-5.el9_2.tuxcare.els10
CVEs
CVE-2026-18355, CVE-2026-18453, CVE-2026-18922, CVE-2026-76560, CVE-2026-78701
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 10:45 UTC · Revision 1

Source evidence

389-ds-base: Fix of 5 CVEs

core-osv · Original source

Published 17 Sept 2026, 14:20 UTC

- CVE-2026-18355: reject SASL packet lengths below the already-consumed offset in sasl_io_start_packet - CVE-2026-18453: avoid NULL pointer dereference in op_shared_search with paged results and USE_ONE_BACKEND - CVE-2026-18922: clear the stale SASL identity in the Cyrus SASL auxiliary property lookup - CVE-2026-76560: require a non-empty bind DN when evaluating SELFDN ACI bind rules - CVE-2026-78701: drain a buffered unencrypted UNBIND across recv calls instead of stalling the connection

osv:CLSA-2026-1789654818

389-ds-base

Fixed versions: 2.2.4-5.el9_2.tuxcare.els10

389-ds-base-devel

Fixed versions: 2.2.4-5.el9_2.tuxcare.els10

389-ds-base-libs

Fixed versions: 2.2.4-5.el9_2.tuxcare.els10

389-ds-base-snmp

Fixed versions: 2.2.4-5.el9_2.tuxcare.els10

python3-lib389

Fixed versions: 2.2.4-5.el9_2.tuxcare.els10

Complete source record
{
  "id": "1baf161ce8efda1ecabbcbf3dfa40d7bc9d52a23172e6065ff9e448fad23872d",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1789654818",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "389-ds-base: Fix of 5 CVEs",
    "summary": "- CVE-2026-18355: reject SASL packet lengths below the already-consumed offset in sasl_io_start_packet - CVE-2026-18453: avoid NULL pointer dereference in op_shared_search with paged results and USE_ONE_BACKEND - CVE-2026-18922: clear the stale SASL identity in the Cyrus SASL auxiliary property lookup - CVE-2026-76560: require a non-empty bind DN when evaluating SELFDN ACI bind rules - CVE-2026-78701: drain a buffered unencrypted UNBIND across recv calls instead of stalling the connection",
    "evidence": "osv:CLSA-2026-1789654818",
    "products": [
      {
        "name": {
          "value": "389-ds-base",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.4-5.el9_2.tuxcare.els10",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "389-ds-base-devel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.4-5.el9_2.tuxcare.els10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "389-ds-base-libs",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.4-5.el9_2.tuxcare.els10",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "389-ds-base-snmp",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.4-5.el9_2.tuxcare.els10",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python3-lib389",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.2.4-5.el9_2.tuxcare.els10",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1789654818",
      "aliases": [
        "CLSA-2026-1789654818"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.4-5.el9_2.tuxcare.els10"
                }
              ]
            }
          ],
          "package": {
            "name": "389-ds-base",
            "purl": "pkg:rpm/tuxcare/389-ds-base?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789654818.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.4-5.el9_2.tuxcare.els10"
                }
              ]
            }
          ],
          "package": {
            "name": "389-ds-base-devel",
            "purl": "pkg:rpm/tuxcare/389-ds-base-devel?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789654818.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.4-5.el9_2.tuxcare.els10"
                }
              ]
            }
          ],
          "package": {
            "name": "389-ds-base-libs",
            "purl": "pkg:rpm/tuxcare/389-ds-base-libs?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789654818.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.4-5.el9_2.tuxcare.els10"
                }
              ]
            }
          ],
          "package": {
            "name": "389-ds-base-snmp",
            "purl": "pkg:rpm/tuxcare/389-ds-base-snmp?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789654818.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.2.4-5.el9_2.tuxcare.els10"
                }
              ]
            }
          ],
          "package": {
            "name": "python3-lib389",
            "purl": "pkg:rpm/tuxcare/python3-lib389?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789654818.json"
          }
        }
      ],
      "modified": "2026-10-26T09:30:49.020762479Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-18355",
        "CVE-2026-18453",
        "CVE-2026-18922",
        "CVE-2026-76560",
        "CVE-2026-78701"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1789654818.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18355",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18453",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-18922",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-76560",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-78701"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-18355",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18453",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-18922",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-76560",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-78701",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447262,
  "published_at": "2026-09-17T14:20:32+00:00"
}