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CVE-2026-63374

🗓️ 22 Sep 2026 15:23:14Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 222 Views

AnyIO before 4.14.2 IDNA 2003 encoding in TLSStream enables certificate spoofing.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cgr
Chainguard
CVE-2026-63374 vulnerabilities
19 Sep 202614:54
–cgr
circl
Circl
CVE-2026-63374
18 Sep 202621:50
–circl
cvelist
Cvelist
CVE-2026-63374 AnyIO: TLSStream IDNA 2003 host name encoding enables potential TLS certificate spoofing
22 Sep 202615:23
–cvelist
debiancve
Debian CVE
CVE-2026-63374
22 Sep 202615:23
–debiancve
euvd
EUVD
EUVD-2026-84522
22 Sep 202615:23
–euvd
github
Github Security Blog
AnyIO: TLSStream IDNA 2003 host name encoding enables potential TLS certificate spoofing
18 Sep 202617:17
–github
mend
Mend
CVE-2026-63374
22 Sep 202615:23
–mend
nvd
NVD
CVE-2026-63374
22 Sep 202616:17
–nvd
osv
OSV
CGA-35CF-623H-MFQ9
19 Sep 202604:30
–osv
osv
OSV
CGA-42M9-WMWX-47GJ
19 Sep 202604:00
–osv
Rows per page
Vulners
Node
agronholmanyioRange<4.14.2
[
  {
    "vendor": "agronholm",
    "product": "anyio",
    "versions": [
      {
        "version": "< 4.14.2",
        "status": "affected"
      }
    ]
  }
]

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28 Sep 2026 17:17Current
6Medium risk
Vulners AI Score6
CVSS 49.3
EPSS0.00289
SSVC
222