CVE-2025-61911

{
  "id": "CVE-2025-61911",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-10T22:15:37.470",
  "lastModified": "2026-10-19T16:10:00.260",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "python-ldap is a lightweight directory access protocol (LDAP) client API for Python. In versions prior to 3.4.5, the sanitization method `ldap.filter.escape_filter_chars` can be tricked to skip escaping of special characters when a crafted `list` or `dict` is supplied as the `assertion_value` parameter, and the non-default `escape_mode=1` is configured. The method `ldap.filter.escape_filter_chars` supports 3 different escaping modes. `escape_mode=0` (default) and `escape_mode=2` happen to raise exceptions when a `list` or `dict` object is supplied as the `assertion_value` parameter. However, `escape_mode=1` computes without performing adequate logic to ensure a fully escaped return value. If an application relies on the vulnerable method in the `python-ldap` library to escape untrusted user input, an attacker might be able to abuse the vulnerability to launch ldap injection attacks which could potentially disclose or manipulate ldap data meant to be inaccessible to them. Version 3.4.5 fixes the issue by adding a type check at the start of the `ldap.filter.escape_filter_chars` method to raise an exception when the supplied `assertion_value` parameter is not of type `str`."
    },
    {
      "lang": "es",
      "value": "python-ldap es una API de cliente de protocolo de acceso a directorios (LDAP) ligera para Python. En versiones anteriores a la 3.4.5, el método de saneamiento ldap.filter.escape_filter_chars puede ser engañado para omitir el escape de caracteres especiales cuando se suministra una 'list' o un 'dict' especialmente diseñado como parámetro 'assertion_value', y se configura el 'escape_mode=1' no predeterminado. El método ldap.filter.escape_filter_chars soporta 3 modos de escape diferentes. 'escape_mode=0' (predeterminado) y 'escape_mode=2' provocan excepciones cuando se suministra un objeto 'list' o 'dict' como parámetro 'assertion_value'. Sin embargo, 'escape_mode=1' calcula sin realizar la lógica adecuada para asegurar un valor de retorno completamente escapado. Si una aplicación se basa en el método vulnerable de la biblioteca python-ldap para escapar la entrada de usuario no confiable, un atacante podría abusar de la vulnerabilidad para lanzar ataques de inyección LDAP que podrían potencialmente divulgar o manipular datos LDAP destinados a ser inaccesibles para ellos. La versión 3.4.5 corrige el problema añadiendo una verificación de tipo al inicio del método ldap.filter.escape_filter_chars para provocar una excepción cuando el parámetro 'assertion_value' suministrado no es de tipo 'str'."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "python-ldap",
          "product": "python-ldap",
          "versions": [
            {
              "version": "< 3.4.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-14T14:57:26.403796Z",
          "id": "CVE-2025-61911",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-75"
        },
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:python-ldap:python-ldap:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "3.4.5",
              "matchCriteriaId": "A066CED7-56FF-4B63-80DF-A7959CE54F6A"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/python-ldap/python-ldap/commit/3957526fb1852e84b90f423d9fef34c7af25b85a",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/python-ldap/python-ldap/releases/tag/python-ldap-3.4.5",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r7r6-cc7p-4v5m",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Mitigation",
        "Third Party Advisory"
      ]
    }
  ]
}