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NATS Server: Incomplete Stripping of Nats-Request-Info Header Allows Identity Spoofing

🗓️ 24 Mar 2026 21:50:05Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 36 Views

Nats server header stripping flaw enables identity spoofing via Nats-Request-Info header in versions before 2.12.6 or 2.11.15.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-33223
25 Mar 202620:20
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-33223
25 Mar 202620:20
–alpinelinux
cgr
Chainguard
CVE-2026-33223 vulnerabilities
25 Mar 202619:17
–cgr
circl
Circl
CVE-2026-33223
26 Mar 202600:54
–circl
cnnvd
CNNVD
Nats-Server 安全漏洞
25 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-33223
25 Mar 202620:20
–cve
cvelist
Cvelist
CVE-2026-33223 NATS Server: Incomplete Stripping of Nats-Request-Info Header Allows Identity Spoofing
25 Mar 202620:20
–cvelist
debiancve
Debian CVE
CVE-2026-33223
25 Mar 202620:20
–debiancve
mend
Mend
CVE-2026-33223
25 Mar 202620:20
–mend
nvd
NVD
CVE-2026-33223
25 Mar 202621:16
–nvd
Rows per page
Vulners
Node
OR
nats-ionats-serverRange2.12.0-RC.1–2.12.6go
nats-ionats-serverRange<2.11.15go

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27 Mar 2026 22:10Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.15.4 - 6.4
EPSS0.00239
SSVC
36