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CVE-2026-75509

🗓️ 24 Aug 2026 20:08:07Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 8 Views

joserfc before 1.7.3 issuer validation bypass via array-valued iss claim membership matching.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-75509 joserfc claim-validation bypass via array-typed single-string claims (iss/sub/jti)
24 Aug 202620:08
cvelist
euvd
EUVD
EUVD-2026-65138
24 Aug 202620:08
euvd
nvd
NVD
CVE-2026-75509
24 Aug 202620:17
nvd
ptsecurity
Positive Technologies
PT-2026-81024
24 Aug 202600:00
ptsecurity
Vulners
Node
authlibjoserfcRange<1.7.3
[
  {
    "vendor": "authlib",
    "product": "joserfc",
    "versions": [
      {
        "version": "< 1.7.3",
        "status": "affected"
      }
    ]
  }
]

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24 Aug 2026 20:17Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.16.5
8