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Starlette: Unvalidated request path concatenated into authority poisons request.url.hostname

🗓️ 15 Jun 2026 20:38:08Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 10 Views

Starlette reconstructs request.url without validating leading slash, risking attacker hostname.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-54282
22 Jun 202616:45
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AlpineLinux
CVE-2026-54282
22 Jun 202616:45
alpinelinux
Chainguard
CVE-2026-54282 vulnerabilities
16 Jun 202620:22
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CVE
CVE-2026-54282
22 Jun 202616:45
cve
Cvelist
CVE-2026-54282 Starlette: Unvalidated request path concatenated into authority poisons request.url.hostname
22 Jun 202616:45
cvelist
Debian CVE
CVE-2026-54282
22 Jun 202616:45
debiancve
EUVD
EUVD-2026-38318
22 Jun 202616:45
euvd
NVD
CVE-2026-54282
22 Jun 202618:16
nvd
OPENSUSE Linux
Security update for python-starlette (important)
30 Jun 202600:00
opensuse
OSV
CGA-9JXV-P7X8-3RW8
16 Jun 202618:27
osv
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Vulners
Node
encodestarletteRange<1.3.0pip

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15 Jun 2026 20:38Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.13.7 - 5.3
EPSS0.00187
SSVC
10