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CVE-2026-50131 Fedify has an incomplete SSRF mitigation after GHSA-p9cg-vqcc-grcx: validatePublicUrl allows special-use IPv4 ranges

🗓️ 10 Jun 2026 20:27:43Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

Fedify's validatePublicUrl has incomplete IPv4 checks allowing certain ranges and SSRF risk.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2026-50131
8 Jun 202614:57
circl
CVE
CVE-2026-50131
10 Jun 202620:27
cve
EUVD
EUVD-2026-36132
10 Jun 202620:27
euvd
NVD
CVE-2026-50131
10 Jun 202622:17
nvd
Positive Technologies
PT-2026-48548
10 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-50131 Fedify has an incomplete SSRF mitigation after GHSA-p9cg-vqcc-grcx: validatePublicUrl allows special-use IPv4 ranges
10 Jun 202620:27
vulnrichment
[
  {
    "vendor": "fedify-dev",
    "product": "fedify",
    "versions": [
      {
        "version": ">= 0.11.2, < 1.9.12",
        "status": "affected"
      },
      {
        "version": ">= 1.10.0, < 1.10.11",
        "status": "affected"
      },
      {
        "version": ">= 2.0.0, < 2.0.19",
        "status": "affected"
      },
      {
        "version": ">= 2.1.0, < 2.1.15",
        "status": "affected"
      },
      {
        "version": ">= 2.2.0, < 2.2.4",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "fedify-dev",
    "product": "vocab-runtime",
    "versions": [
      {
        "version": "< 2.0.19",
        "status": "affected"
      },
      {
        "version": ">= 2.1.0, < 2.1.15",
        "status": "affected"
      },
      {
        "version": ">= 2.2.0, < 2.2.4",
        "status": "affected"
      }
    ]
  }
]

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