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CVE-2025-15104 Nu Html Checker (validator.nu) - Restriction bypass vulnerability allowing local SSRF

🗓️ 16 Jan 2026 14:00:16Reported by Fluid AttacksType 
cvelist
 cvelist
🔗 www.cve.org👁 23 Views

CVE-2025-15104: Nu Html Checker bypasses localhost protections via DNS rebinding to access internal resources.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2025-15104
16 Jan 202614:00
attackerkb
Circl
CVE-2025-15104
16 Jan 202615:50
circl
CNNVD
The Nu Html Checker security vulnerability
16 Jan 202600:00
cnnvd
CVE
CVE-2025-15104
16 Jan 202614:00
cve
Debian CVE
CVE-2025-15104
16 Jan 202614:00
debiancve
EUVD
EUVD-2026-2919
16 Jan 202614:00
euvd
Github Security Blog
Nu Html Checker (vnu) contains a Server-Side Request Forgery (SSRF) vulnerability
16 Jan 202615:31
github
NVD
CVE-2025-15104
16 Jan 202614:15
nvd
OSV
CVE-2025-15104
16 Jan 202614:15
osv
OSV
DEBIAN-CVE-2025-15104
16 Jan 202614:15
osv
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[
  {
    "defaultStatus": "unknown",
    "platforms": [
      "Windows",
      "Linux",
      "MacOS"
    ],
    "product": "The Nu Html Checker",
    "repo": "https://github.com/validator/validator",
    "vendor": "The Nu Html Checker",
    "versions": [
      {
        "status": "affected",
        "version": "latest - commit:23f090a11bab8d0d4e698f1ffc197a4fe226a9cd"
      }
    ]
  }
]

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