Vulnerability · Published Jan 8, 2026 · Assigned by GitHub_M
CVE-2026-21880Kanboard LDAP Injection Vulnerability can Lead to User Enumeration and Information Disclosure
Medium 5.3
In plain English
A medium-severity information exposure in kanboard from kanboard. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | kanboard | 1.2.49+ds-1 | DEBIAN-CVE-2026-21880 |
Affected products (as reported)
Weakness: CWE-90, CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N