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CVE-2026-22037 @fastify/express vulnerable to Improper Handling of URL Encoding (Hex Encoding)

🗓️ 19 Jan 2026 16:48:10Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

Vulnerability in fastify/express prior to 4.0.3 lets bypass middleware via URL encoded path.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-22037
19 Jan 202616:48
attackerkb
circl
Circl
CVE-2026-22037
19 Jan 202611:51
circl
cnnvd
CNNVD
@fastify/express security vulnerability
19 Jan 202600:00
cnnvd
cve
CVE
CVE-2026-22037
19 Jan 202616:48
cve
euvd
EUVD
EUVD-2026-3320
20 Jan 202616:35
euvd
github
Github Security Blog
@fastify/express vulnerable to Improper Handling of URL Encoding (Hex Encoding)
20 Jan 202616:35
github
nvd
NVD
CVE-2026-22037
19 Jan 202617:15
nvd
osv
OSV
GHSA-G6Q3-96CP-5R5M @fastify/express vulnerable to Improper Handling of URL Encoding (Hex Encoding)
20 Jan 202616:35
osv
ptsecurity
Positive Technologies
PT-2026-3452
19 Jan 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-22037
20 Jan 202617:21
redhatcve
Rows per page
[
  {
    "vendor": "fastify",
    "product": "fastify-express",
    "versions": [
      {
        "version": "< 4.0.3",
        "status": "affected"
      }
    ]
  }
]

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19 Jan 2026 16:48Current
CVSS 3.18.4
EPSS0.00321
27