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CVE-2026-21880

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Date: January 7, 2026

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 Score

Related Resources (5)

https://github.com/kanboard/kanboard/commit/dd374079f7c2d1dab74c1680960e684ff8668586
https://github.com/kanboard/kanboard/releases/tag/v1.2.49
https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7
https://nvd.nist.gov/vuln/detail/CVE-2026-21880
https://www.mend.io/vulnerability-database/CVE-2026-21880

Severity Score

Weakness Type (CWE)

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

CWE-90

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Top Fix

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Upgrade Version

Upgrade to version https://github.com/kanboard/kanboard.git - v1.2.49

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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