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Findings

CVE-2020-36227

A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.

Published Jan 26, 2021 · updated Oct 14, 2026 · openldap openldap

A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 26, 2021 · NIST NVD

    Detected

    A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.

  2. Oct 14, 2026 · NIST NVD

    Updated

    A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.

Affected

  • cpe apple/macosversion unspecified
  • cpe debian/debian linux10.0
  • cpe debian/debian linux9.0
  • cpe openldap/openldapversion unspecified

Sources

  • CVE.orgCVE-2020-36227

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2020-36227

    A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.

    nvd.nist.gov

References