kanboard: Kanboard is project management software focused on Kanban methodology
CVE-2026-21879 is fixed in kanboard on 1 platform by DEBIAN-CVE-2026-21879 (version 1.2.49+ds-1), released January 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below are vulnerable to an Open Redirect attack that allows malicious actors to redirect authenticated users to attacker-controlled websites. By crafting URLs such as //evil.com, attackers can bypass the filter_var($url, FILTER_VALIDATE_URL) validation check. This vulnerability could be exploited to conduct phishing attacks, steal user credentials, or distribute malware. The issue is fixed in version 1.2.49.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| kanboard · Debian 14 | 1.2.49+ds-1 | DEBIAN-CVE-2026-21879 | Jan 8, 2026 |
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