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CVE-2025-61672

🗓️ 08 Oct 2025 14:55:06Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 40 Views

Invalid device keys allow an attacker on a victim server to degrade federation; upgrade to 1.138.4 or 1.139.2.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2025-61672
8 Oct 202514:55
–alpinelinux
cnnvd
CNNVD
Synapse security vulnerabilities
8 Oct 202500:00
–cnnvd
cvelist
Cvelist
CVE-2025-61672 Synapse: Invalid device keys degrade federation functionality
8 Oct 202514:55
–cvelist
debiancve
Debian CVE
CVE-2025-61672
8 Oct 202514:55
–debiancve
euvd
EUVD
EUVD-2025-33305
8 Oct 202514:55
–euvd
github
Github Security Blog
Synapse's invalid device keys degrade federation functionality
8 Oct 202517:51
–github
mend
Mend
CVE-2025-61672
8 Oct 202514:55
–mend
nvd
NVD
CVE-2025-61672
8 Oct 202515:16
–nvd
opensuse
OPENSUSE Linux
matrix-synapse-1.139.1-1.1 on GA media (moderate)
8 Oct 202500:00
–opensuse
osv_debian
osv_debian
DEBIAN-CVE-2025-61672
8 Oct 202515:16
–osv_debian
Rows per page
Vulners
Node
OR
elementsynapseRange<1.138.3
elementsynapseMatch1.139.0
[
  {
    "vendor": "element-hq",
    "product": "synapse",
    "versions": [
      {
        "version": "< 1.138.3",
        "status": "affected"
      },
      {
        "version": "= 1.139.0",
        "status": "affected"
      }
    ]
  }
]

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08 Oct 2026 13:10Current
5.9Medium risk
Vulners AI Score5.9
CVSS 45.3
EPSS0.00466
SSVC
40