CVE-2026-21880 (GCVE-0-2026-21880)

Vulnerability from cvelistv5 – Published: 2026-01-08 00:59 – Updated: 2026-01-08 18:29
VLAI
Title
Kanboard LDAP Injection Vulnerability can Lead to User Enumeration and Information Disclosure
Summary
Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. User-supplied input is directly substituted into LDAP search filters without proper sanitization, allowing attackers to enumerate all LDAP users, discover sensitive user attributes, and perform targeted attacks against specific accounts. This issue is fixed in version 1.2.49.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
kanboard kanboard Affected: < 1.2.49
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-21880",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-08T18:29:07.788117Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-08T18:29:16.406Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kanboard",
          "vendor": "kanboard",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.2.49"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. User-supplied input is directly substituted into LDAP search filters without proper sanitization, allowing attackers to enumerate all LDAP users, discover sensitive user attributes, and perform targeted attacks against specific accounts. This issue is fixed in version 1.2.49."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-90",
              "description": "CWE-90: Improper Neutralization of Special Elements used in an LDAP Query (\u0027LDAP Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-08T00:59:20.338Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7"
        },
        {
          "name": "https://github.com/kanboard/kanboard/commit/dd374079f7c2d1dab74c1680960e684ff8668586",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kanboard/kanboard/commit/dd374079f7c2d1dab74c1680960e684ff8668586"
        },
        {
          "name": "https://github.com/kanboard/kanboard/releases/tag/v1.2.49",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kanboard/kanboard/releases/tag/v1.2.49"
        }
      ],
      "source": {
        "advisory": "GHSA-v66r-m28r-wmq7",
        "discovery": "UNKNOWN"
      },
      "title": "Kanboard LDAP Injection Vulnerability can Lead to User Enumeration and Information Disclosure"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-21880",
    "datePublished": "2026-01-08T00:59:20.338Z",
    "dateReserved": "2026-01-05T17:24:36.928Z",
    "dateUpdated": "2026-01-08T18:29:16.406Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-21880",
      "date": "2026-07-03",
      "epss": "0.00352",
      "percentile": "0.27231"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-21880\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-01-08T02:15:53.650\",\"lastModified\":\"2026-06-17T10:19:04.850\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. User-supplied input is directly substituted into LDAP search filters without proper sanitization, allowing attackers to enumerate all LDAP users, discover sensitive user attributes, and perform targeted attacks against specific accounts. This issue is fixed in version 1.2.49.\"},{\"lang\":\"es\",\"value\":\"Kanboard es un software de gesti\u00f3n de proyectos enfocado en la metodolog\u00eda Kanban. Las versiones 1.2.48 e inferiores tienen una vulnerabilidad de inyecci\u00f3n LDAP en el mecanismo de autenticaci\u00f3n LDAP. La entrada proporcionada por el usuario se sustituye directamente en los filtros de b\u00fasqueda LDAP sin una sanitizaci\u00f3n adecuada, permitiendo a los atacantes enumerar todos los usuarios LDAP, descubrir atributos de usuario sensibles y realizar ataques dirigidos contra cuentas espec\u00edficas. Este problema se corrige en la versi\u00f3n 1.2.49.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"kanboard\",\"product\":\"kanboard\",\"versions\":[{\"version\":\"\u003c 1.2.49\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-08T18:29:07.788117Z\",\"id\":\"CVE-2026-21880\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-90\"},{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kanboard:kanboard:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.2.49\",\"matchCriteriaId\":\"AFA1D972-E76A-4A20-95F5-68D9915D3797\"}]}]}],\"references\":[{\"url\":\"https://github.com/kanboard/kanboard/commit/dd374079f7c2d1dab74c1680960e684ff8668586\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/kanboard/kanboard/releases/tag/v1.2.49\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-21880\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-08T18:29:07.788117Z\"}}}], \"references\": [{\"url\": \"https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-08T18:28:57.981Z\"}}], \"cna\": {\"title\": \"Kanboard LDAP Injection Vulnerability can Lead to User Enumeration and Information Disclosure\", \"source\": {\"advisory\": \"GHSA-v66r-m28r-wmq7\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"kanboard\", \"product\": \"kanboard\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 1.2.49\"}]}], \"references\": [{\"url\": \"https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7\", \"name\": \"https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/kanboard/kanboard/commit/dd374079f7c2d1dab74c1680960e684ff8668586\", \"name\": \"https://github.com/kanboard/kanboard/commit/dd374079f7c2d1dab74c1680960e684ff8668586\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/kanboard/kanboard/releases/tag/v1.2.49\", \"name\": \"https://github.com/kanboard/kanboard/releases/tag/v1.2.49\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. User-supplied input is directly substituted into LDAP search filters without proper sanitization, allowing attackers to enumerate all LDAP users, discover sensitive user attributes, and perform targeted attacks against specific accounts. This issue is fixed in version 1.2.49.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-90\", \"description\": \"CWE-90: Improper Neutralization of Special Elements used in an LDAP Query (\u0027LDAP Injection\u0027)\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-01-08T00:59:20.338Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-21880\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-08T18:29:16.406Z\", \"dateReserved\": \"2026-01-05T17:24:36.928Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-01-08T00:59:20.338Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.