CVE-2026-78701 (GCVE-0-2026-78701)

Vulnerability from cvelistv5 – Published: 2026-08-25 07:33 – Updated: 2026-10-08 23:22
VLAI
Title
389-ds-base: 389-ds-base: cve-2026-11610 incomplete fix may introduce a connection-stall dos
Summary
A flaw was found in 389-ds-base. A remote, authenticated attacker could exploit a vulnerability in the Simple Authentication and Security Layer (SASL) UNBIND process. By sending a specially crafted request, the attacker can cause a connection to stall, leading to resource exhaustion and a Denial of Service (DoS) for the server.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 11:36 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1063 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:64784 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:64785 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:65119 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-78701 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2523232 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:3.2.0-10.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:2.8.0-10.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/a:redhat:enterprise_linux:9::crb
Create a notification for this product.
Red Hat Red Hat Directory Server 13.2 Unaffected: 1788851765 , < * (rpm)
    cpe:/a:redhat:directory_server:13.2::el10
Create a notification for this product.
Red Hat Red Hat Directory Server 11     cpe:/a:redhat:directory_server:11
Create a notification for this product.
Red Hat Red Hat Directory Server 12     cpe:/a:redhat:directory_server:12
Create a notification for this product.
Red Hat Red Hat Directory Server 13     cpe:/a:redhat:directory_server:13
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Date Public
2026-08-24 12:00
Show details on NVD website
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              "cpes": [
                "cpe:/a:redhat:directory_server:11"
              ],
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              "product": "Red Hat Directory Server 11",
              "vendor": "Red Hat"
            },
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              "vendor": "Red Hat"
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              "cpes": [
                "cpe:/o:redhat:enterprise_linux:7"
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              "defaultStatus": "affected",
              "packageName": "389-ds-base",
              "product": "Red Hat Enterprise Linux 7",
              "vendor": "Red Hat"
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              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:8"
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              "defaultStatus": "affected",
              "packageName": "389-ds:1.4/389-ds-base",
              "product": "Red Hat Enterprise Linux 8",
              "vendor": "Red Hat"
            }
          ],
          "datePublic": "2026-08-24T12:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "A flaw was found in 389-ds-base. A remote, authenticated attacker could exploit a vulnerability in the Simple Authentication and Security Layer (SASL) UNBIND process. By sending a specially crafted request, the attacker can cause a connection to stall, leading to resource exhaustion and a Denial of Service (DoS) for the server."
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          ],
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                "type": "Red Hat severity rating"
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                "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"
              },
              "format": "CVSS"
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          ],
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                  "cweId": "CWE-787",
                  "description": "Out-of-bounds Write",
                  "lang": "en",
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                "x_refsource_REDHAT"
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            },
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                "x_refsource_REDHAT"
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            },
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            },
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              ],
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            },
            {
              "name": "RHBZ#2523232",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
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              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-08-24T12:00:00.000Z",
              "value": "Made public."
            }
          ],
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          "workarounds": [
            {
              "lang": "en",
              "value": "To mitigate this issue, restrict network access to the 389-ds-base service to only trusted clients and networks. This can be achieved by configuring firewall rules to limit inbound connections to the LDAP ports (typically 389 for LDAP and 636 for LDAPS) to known, authorized IP addresses or subnets.\n\nExample using `firewalld`:\n```bash\n# firewall-cmd --permanent --add-rich-rule=\u0027rule family=\"ipv4\" source address=\"\u003cTRUSTED_IP_OR_SUBNET\u003e\" port port=\"389\" protocol=\"tcp\" accept\u0027\n# firewall-cmd --permanent --add-rich-rule=\u0027rule family=\"ipv4\" source address=\"\u003cTRUSTED_IP_OR_SUBNET\u003e\" port port=\"636\" protocol=\"tcp\" accept\u0027\n# firewall-cmd --reload\n```\nReplace `\u003cTRUSTED_IP_OR_SUBNET\u003e` with the actual IP addresses or network ranges of your trusted clients. This action may impact legitimate clients if not configured correctly. A service restart is not required for firewall changes to take effect."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-787: Out-of-bounds Write"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-78701",
        "datePublished": "2026-08-25T07:33:02.549Z",
        "dateReserved": "2026-08-25T05:00:43.165Z",
        "dateUpdated": "2026-10-08T23:22:15.672Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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