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CVE-2026-18165 @fastify/oauth2 vulnerable to Login CSRF via plantable OAuth state cookies

🗓️ 15 Aug 2026 13:45:51Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

@fastify/oauth2 7.2.0-8.2.x allows login CSRF via predictable state cookies plantable by sibling subdomains.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-18165
15 Aug 202613:45
–attackerkb
circl
Circl
CVE-2026-18165
15 Aug 202613:48
–circl
cve
CVE
CVE-2026-18165
15 Aug 202613:45
–cve
euvd
EUVD
EUVD-2026-59767
15 Aug 202613:45
–euvd
nvd
NVD
CVE-2026-18165
15 Aug 202614:17
–nvd
ptsecurity
Positive Technologies
PT-2026-73032
15 Aug 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-18165: Cross-Site Request Forgery (CSRF)
15 Aug 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-18165
23 Sep 202617:47
–redhatcve
snyk
Snyk
Cross-site Request Forgery (CSRF)
15 Aug 202617:33
–snyk
vulnersosv
vulnersOsv
@appweaver/core (>=1.0.0, <=1.4.1), @bryopsida/object-store (>=0.1.0, <=0.1.7) +11 more potentially affected by CVE-2026-18165 via @fastify/oauth2 (>=7.9.0, <=8.2.0)
15 Aug 202617:33
–vulnersosv
Rows per page
[
  {
    "vendor": "@fastify/oauth2",
    "product": "@fastify/oauth2",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "7.2.0",
        "lessThan": "8.3.0"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "8.3.0"
      }
    ],
    "packageURL": "pkg:npm/@fastify/oauth2"
  }
]

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