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CVE-2026-49860

🗓️ 23 Jun 2026 17:15:05Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 71 Views

Deno prior to 2.8.1 WebSocket bypass: missing post domain check allows deny-net bypass.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-49860
23 Jun 202617:15
–alpinelinux
circl
Circl
CVE-2026-49860
29 Jun 202616:07
–circl
cvelist
Cvelist
CVE-2026-49860 Deno: WebSocket API sandbox bypass via missing post-DNS check
23 Jun 202617:15
–cvelist
euvd
EUVD
EUVD-2026-38542
23 Jun 202617:15
–euvd
github
Github Security Blog
Deno: WebSocket API sandbox bypass via missing post-DNS check
16 Jun 202619:04
–github
mend
Mend
CVE-2026-49860
23 Jun 202617:15
–mend
nvd
NVD
CVE-2026-49860
23 Jun 202618:18
–nvd
osv_ghsa
osv_ghsa
GHSA-83PC-3RW9-QPWJ Deno: WebSocket API sandbox bypass via missing post-DNS check
16 Jun 202619:04
–osv_ghsa
osv_jlsec
osv_jlsec
JLSEC-2026-1165 Deno: WebSocket API sandbox bypass via missing post-DNS check
5 Aug 202618:20
–osv_jlsec
ptsecurity
Positive Technologies
PT-2026-50154
16 Jun 202600:00
–ptsecurity
Rows per page
NVD
Vulners
Node
denodenoRange<2.8.1
[
  {
    "vendor": "denoland",
    "product": "deno",
    "versions": [
      {
        "version": "< 2.8.1",
        "status": "affected"
      }
    ]
  }
]

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29 Jun 2026 14:37Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.2
EPSS0.00141
SSVC
71