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CVE-2026-27889 NATS: Pre-auth remote server crash via WebSocket frame length overflow in wsRead

🗓️ 25 Mar 2026 19:36:36Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 19 Views

Pre-auth remote crash in NATS server from WebSocket frame overflow; fix in 2.11.14 and 2.12.5.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-27889
25 Mar 202619:36
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AlpineLinux
CVE-2026-27889
25 Mar 202619:36
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Chainguard
CVE-2026-27889 vulnerabilities
26 Mar 202619:17
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Circl
CVE-2026-27889
25 Mar 202617:07
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CNNVD
Nats-Server 输入验证错误漏洞
25 Mar 202600:00
cnnvd
CVE
CVE-2026-27889
25 Mar 202619:36
cve
Debian CVE
CVE-2026-27889
25 Mar 202619:36
debiancve
EUVD
EUVD-2026-15962
25 Mar 202617:07
euvd
Github Security Blog
NATS: Pre-auth remote server crash via WebSocket frame length overflow in wsRead
25 Mar 202617:07
github
NVD
CVE-2026-27889
25 Mar 202620:16
nvd
Rows per page
[
  {
    "vendor": "nats-io",
    "product": "nats-server",
    "versions": [
      {
        "version": ">= 2.2.0, < 2.11.14",
        "status": "affected"
      },
      {
        "version": ">= 2.12.0, < 2.12.5",
        "status": "affected"
      }
    ]
  }
]

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