Medium

389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser

Type: advisorySource: Official CVE List1 source record

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure.

Announced 9 Jun 2026Group revision 1

Original source ↗

CVE-2026-11788

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-11788

Red Hat Directory Server 11.5 E4S for RHEL 8

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Directory Server 11.7 E4S for RHEL 8

Source reference: /containers/cna/affected/1/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Directory Server 11.9 for RHEL 8

Source reference: /containers/cna/affected/2/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Directory Server 12.2 E4S for RHEL 9

Source reference: /containers/cna/affected/3/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Directory Server 12.4 E4S for RHEL 9

Source reference: /containers/cna/affected/4/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 10

Source reference: /containers/cna/affected/5/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 10.0 Extended Update Support

Source reference: /containers/cna/affected/6/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 7 Extended Lifecycle Support

Source reference: /containers/cna/affected/7/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8

Source reference: /containers/cna/affected/8/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Source reference: /containers/cna/affected/9/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Source reference: /containers/cna/affected/10/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Source reference: /containers/cna/affected/11/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Source reference: /containers/cna/affected/12/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Source reference: /containers/cna/affected/13/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

Source reference: /containers/cna/affected/14/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/15/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Source reference: /containers/cna/affected/16/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Source reference: /containers/cna/affected/17/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 9.6 Extended Update Support

Source reference: /containers/cna/affected/18/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Directory Server 12

Source reference: /containers/cna/affected/19/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Directory Server 13

Source reference: /containers/cna/affected/20/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat Enterprise Linux 6

Source reference: /containers/cna/affected/21/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:/a:redhat:directory_server_e4s:11.5::el8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Directory Server 11.5 E4S for RHEL 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "8060020260908152739.0ca98e7e",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "redhat-ds:11",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:directory_server_e4s:11.7::el8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Directory Server 11.7 E4S for RHEL 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "8080020260806114250.f969626e",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "redhat-ds:11",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:directory_server:11.9::el8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Directory Server 11.9 for RHEL 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "8100020260803140625.37ed7c03",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "redhat-ds:11",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:directory_server_e4s:12.2::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Directory Server 12.2 E4S for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "9020020260730155601.1674d574",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "redhat-ds:12",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:directory_server_e4s:12.4::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Directory Server 12.4 E4S for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "9040020260810131422.1674d574",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "redhat-ds:12",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10.2"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 10",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:3.2.0-9.el10_2",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux_eus:10.0"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:3.0.6-20.el10_0",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:rhel_els:7"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:1.3.11.1-14.el7_9",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "8100020260806150504.25e700aa",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds:1.4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_aus:8.4::appstream",
      "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "versions": [
      {
        "status": "unaffected",
        "version": "8040020260803141511.96015a92",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds:1.4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_aus:8.4::appstream",
      "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
    "versions": [
      {
        "status": "unaffected",
        "version": "8040020260803141511.96015a92",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds:1.4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_aus:8.6::appstream",
      "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
    "versions": [
      {
        "status": "unaffected",
        "version": "8060020260806120442.824efc52",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds:1.4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_aus:8.6::appstream",
      "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
    "versions": [
      {
        "status": "unaffected",
        "version": "8060020260806120442.824efc52",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds:1.4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:8.8::appstream",
      "cpe:/a:redhat:rhel_tus:8.8::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
    "versions": [
      {
        "status": "unaffected",
        "version": "8080020260806114228.6dbb3803",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds:1.4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:8.8::appstream",
      "cpe:/a:redhat:rhel_tus:8.8::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "versions": [
      {
        "status": "unaffected",
        "version": "8080020260806114228.6dbb3803",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds:1.4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::crb"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.8.0-9.el9_8",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:9.2::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.2.4-20.el9_2",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_e4s:9.4::appstream"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.4.5-27.el9_4",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhel_eus:9.6::appstream",
      "cpe:/a:redhat:rhel_eus:9.6::crb"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:2.6.1-23.el9_6",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:directory_server:12"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Directory Server 12",
    "packageName": "redhat-ds:12/389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:directory_server:13"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Directory Server 13",
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:6"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 6",
    "packageName": "389-ds-base",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unknown"
  }
]

Related CVEs: CVE-2026-11788
Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event: #12512 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 00:08:38 GMT
Publisher date: Tue, 09 Jun 2026 13:02:53 GMT

Read the original announcement

Revision history

25 Oct 2026CVE-2026-11788 · Revision 1Source updated