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CVE-2026-23518 Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment

🗓️ 21 Jan 2026 21:50:47Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 59 Views

Fleet Windows mobile device management enrollment allows forged tokens for unauthorized devices.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-23518
21 Jan 202621:50
–attackerkb
circl
Circl
CVE-2026-23518
21 Jan 202623:10
–circl
cnnvd
CNNVD
Fleet data falsification vulnerability
21 Jan 202600:00
–cnnvd
cve
CVE
CVE-2026-23518
21 Jan 202621:50
–cve
euvd
EUVD
EUVD-2026-3348
21 Jan 202621:50
–euvd
github
Github Security Blog
Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment
20 Jan 202620:55
–github
mend
Mend
CVE-2026-23518
21 Jan 202621:50
–mend
nvd
NVD
CVE-2026-23518
21 Jan 202622:15
–nvd
osv_cve
osv_cve
CVE-2026-23518 Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment
21 Jan 202621:50
–osv_cve
osv_ghsa
osv_ghsa
GHSA-63M5-974W-448V Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment
20 Jan 202620:55
–osv_ghsa
Rows per page
[
  {
    "vendor": "fleetdm",
    "product": "fleet",
    "versions": [
      {
        "version": ">= 4.78.0, < 4.78.3",
        "status": "affected"
      },
      {
        "version": ">= 4.77.0, < 4.77.1",
        "status": "affected"
      },
      {
        "version": ">= 4.76.0, < 4.76.2",
        "status": "affected"
      },
      {
        "version": ">= 4.75.0, < 4.75.2",
        "status": "affected"
      },
      {
        "version": "< 4.53.3",
        "status": "affected"
      }
    ]
  }
]

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