What’s Vulnerable › Vulnerabilities

CVE-2026-21880: Kanboard LDAP Injection Vulnerability can Lead to User Enumeration and Information Disclosure

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-08 · updated 2026-06-17
• Weakness: CWE-90

Description

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.

Affected products

• kanboard: before 1.2.49 — fixed in 1.2.49

How to fix

Upgrade to a fixed version: kanboard 1.2.49. Check the vendor advisory for mitigations.

References

• 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://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7

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