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CVE-2026-21881

🗓️ 08 Jan 2026 01:08:01Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 13 Views

Kanboard prior to 1.2.49 has a critical authentication bypass via reverse proxy header spoofing.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
GithubExploit
Exploit for CVE-2026-21879
7 Jan 202606:19
githubexploit
Circl
CVE-2026-21881
8 Jan 202602:56
circl
CNNVD
Kanboard 安全漏洞
8 Jan 202600:00
cnnvd
Cvelist
CVE-2026-21881 Kanboard is Vulnerable to Reverse Proxy Authentication Bypass
8 Jan 202601:08
cvelist
Debian CVE
CVE-2026-21881
8 Jan 202601:08
debiancve
EUVD
EUVD-2026-1668
8 Jan 202601:08
euvd
NVD
CVE-2026-21881
8 Jan 202602:15
nvd
OSV
CVE-2026-21881 Kanboard is Vulnerable to Reverse Proxy Authentication Bypass
8 Jan 202601:08
osv
OSV
DEBIAN-CVE-2026-21881
8 Jan 202602:15
osv
Positive Technologies
PT-2026-2118
8 Jan 202600:00
ptsecurity
Rows per page
NVD
Vulners
Node
kanboardkanboardRange<1.2.49
[
  {
    "vendor": "kanboard",
    "product": "kanboard",
    "versions": [
      {
        "version": "< 1.2.49",
        "status": "affected"
      }
    ]
  }
]

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20 Jan 2026 15:57Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.19.1
EPSS0.00377
SSVC
13