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Improper Handling of URL Encoding (Hex Encoding)

🗓️ 19 Jan 2026 15:46:51Reported by Snyk Security DatabaseType 
snyk
 snyk
🔗 security.snyk.io👁 3 Views

Vulnerability in fastify middie allows bypassing /admin with URL-encoded hex; upgrade to 9.1.0.

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Refs
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ATTACKERKB
CVE-2026-22031
19 Jan 202615:24
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CVE-2026-22037
19 Jan 202616:48
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19 Jan 202611:51
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@fastify/middie security vulnerabilities
19 Jan 202600:00
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19 Jan 202615:24
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CVE-2026-22031 Fastify Middie Middleware Path Bypass
19 Jan 202615:24
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EUVD-2026-3321
20 Jan 202616:34
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Fastify Middie Middleware Path Bypass
20 Jan 202616:34
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CVE-2026-22031
19 Jan 202616:15
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CVE-2026-22031 Fastify Middie Middleware Path Bypass
19 Jan 202615:24
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19 Jan 2026 15:46Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.18.4
CVSS 48.9
EPSS0.00457
SSVC
3