Kanboard vulnerabilities: known CVEs & security history
Kanboard · Productivity / PM · 48 tracked CVEs · 0 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Kanboard release lines — 48 in total. A CVE here doesn't mean your version is affected — check Kanboard's current status and the safe version to run.
Known Kanboard CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2026-21881 | critical | 9.1 | 0% | 2026 |
| CVE-2025-55010 | critical | 9.1 | 1% | 2025 |
| CVE-2024-51748 | critical | 9.1 | 1% | 2024 |
| CVE-2024-51747 | critical | 9.1 | 1% | 2024 |
| CVE-2026-29056 | high | 8.8 | 0% | 2026 |
| CVE-2017-12851 | high | 8.8 | 1% | 2017 |
| CVE-2017-12850 | high | 8.8 | 1% | 2017 |
| CVE-2026-25924 | high | 8.4 | 0% | 2026 |
| CVE-2024-36399 | high | 8.2 | 0% | 2024 |
| CVE-2025-52560 | high | 8.1 | 0% | 2025 |
| CVE-2023-36813 | high | 7.1 | 1% | 2023 |
| CVE-2014-3920 | medium | 6.8 | 1% | 2014 |
| CVE-2026-33058 | medium | 6.5 | 0% | 2026 |
| CVE-2024-55603 | medium | 6.5 | 0% | 2024 |
| CVE-2025-55011 | medium | 6.4 | 0% | 2025 |
| CVE-2023-33969 | medium | 6.4 | 1% | 2023 |
| CVE-2019-7324 | medium | 6.1 | 1% | 2019 |
| CVE-2026-24885 | medium | 5.7 | 0% | 2026 |
| CVE-2024-54001 | medium | 5.5 | 0% | 2024 |
| CVE-2025-46825 | medium | 5.4 | 0% | 2025 |
| CVE-2023-33970 | medium | 5.4 | 1% | 2023 |
| CVE-2023-33968 | medium | 5.4 | 0% | 2023 |
| CVE-2026-21880 | medium | 5.3 | 0% | 2026 |
| CVE-2025-52576 | medium | 5.3 | 0% | 2025 |
| CVE-2024-22720 | medium | 4.8 | 0% | 2024 |
| CVE-2026-21879 | medium | 4.7 | 0% | 2026 |
| CVE-2023-32685 | medium | 4.4 | 1% | 2023 |
| CVE-2026-25531 | medium | 4.3 | 0% | 2026 |
| CVE-2026-25530 | medium | 4.3 | 0% | 2026 |
| CVE-2023-33956 | medium | 4.3 | 1% | 2023 |
| CVE-2017-15212 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15211 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15210 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15209 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15208 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15207 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15206 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15205 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15204 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15203 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15202 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15201 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15200 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15199 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15198 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15197 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15196 | medium | 4.3 | 1% | 2017 |
| CVE-2017-15195 | medium | 4.3 | 1% | 2017 |
Is my Kanboard version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your Kanboard version → · Monitor Kanboard for new CVEs →
Kanboard vulnerabilities — frequently asked
How many known vulnerabilities does Kanboard have?
IsItPatched tracks 48 CVEs for Kanboard. 4 are critical-severity and 7 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Kanboard have any actively-exploited vulnerabilities?
None of Kanboard's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe Kanboard vulnerability?
Among tracked issues, CVE-2026-21881 (CRITICAL, CVSS 9.1) ranks highest — a Improper authentication weakness.
Is Kanboard safe to use?
It depends on the version. The latest supported Kanboard release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: Kanboard security status · Kanboard end-of-life · actively-exploited CVEs. Always verify against Kanboard's advisories — see our disclaimer.