FKIE_CVE-2026-11611

Vulnerability from fkie_nvd - Published: 2026-06-08 17:16 - Updated: 2026-07-23 07:10
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A flaw was found in 389 Directory Server. The Content Synchronization persistent search plugin allows unbounded memory growth when an authenticated client stops reading sync responses, enabling denial of service. Additional race conditions in plugin thread lifecycle can cause crashes during connection teardown or shutdown.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-11611Vendor Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2485424Issue Tracking, Vendor Advisory
Impacted products
Vendor Product Version
redhat directory_server 11.0
redhat directory_server 12.0
redhat directory_server 13.0
redhat 389_directory_server -
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
redhat enterprise_linux 10.0
To clipboard 

{
  "affected": [
    {
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          "cpes": [
            "cpe:/a:redhat:directory_server:11"
          ],
          "defaultStatus": "affected",
          "packageName": "redhat-ds:11/389-ds-base",
          "product": "Red Hat Directory Server 11",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
            "cpe:/a:redhat:directory_server:12"
          ],
          "defaultStatus": "affected",
          "packageName": "redhat-ds:12/389-ds-base",
          "product": "Red Hat Directory Server 12",
          "vendor": "Red Hat"
        },
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          "product": "Red Hat Directory Server 13",
          "vendor": "Red Hat"
        },
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          "cpes": [
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          ],
          "defaultStatus": "affected",
          "packageName": "389-ds-base",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
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          "cpes": [
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          ],
          "defaultStatus": "unaffected",
          "packageName": "389-ds-base",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
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          "cpes": [
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          ],
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          "product": "Red Hat Enterprise Linux 7",
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        },
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        },
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          "cpes": [
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          ],
          "defaultStatus": "affected",
          "packageName": "389-ds-base",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in 389 Directory Server. The Content Synchronization persistent search plugin allows unbounded memory growth when an authenticated client stops reading sync responses, enabling denial of service. Additional race conditions in plugin thread lifecycle can cause crashes during connection teardown or shutdown."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una vulnerabilidad en 389 Directory Server. El plugin de b\u00fasqueda persistente de sincronizaci\u00f3n de contenido permite un crecimiento ilimitado de la memoria cuando un cliente autenticado deja de leer las respuestas de sincronizaci\u00f3n, lo que permite la denegaci\u00f3n de servicio. Condiciones de carrera adicionales en el ciclo de vida de los hilos del plugin pueden causar fallos durante el cierre de la conexi\u00f3n o el apagado."
    }
  ],
  "id": "CVE-2026-11611",
  "lastModified": "2026-07-23T07:10:00.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "secalert@redhat.com",
        "type": "Secondary"
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          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-09T14:28:50.963949Z",
          "version": "2.0.3"
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  "published": "2026-06-08T17:16:40.930",
  "references": [
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      "source": "secalert@redhat.com",
      "tags": [
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      ],
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    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485424"
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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