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CVE-2026-77972 safeurl validated address is not bound to the request, allowing DNS rebinding

🗓️ 15 Sep 2026 15:37:49Reported by EEFType 
cvelist
 cvelist
🔗 www.cve.org👁 13 Views

Time-of-check Time-of-use (TOCTOU) Race Condition in Slab safeurl allows an attacker who controls a hostname's DNS responses to reach internal network destinations that validation rejected. Validation returns a verdict and not the address it appro...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-77972
15 Sep 202615:37
cve
euvd
EUVD
EUVD-2026-78676
15 Sep 202615:37
euvd
nvd
NVD
CVE-2026-77972
15 Sep 202616:17
nvd
osv
OSV
EEF-CVE-2026-77972 safeurl validated address is not bound to the request, allowing DNS rebinding
15 Sep 202615:37
osv
ptsecurity
Positive Technologies
PT-2026-92110
15 Sep 202600:00
ptsecurity
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:slab:safeurl:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.SafeURL'",
      "'Elixir.SafeURL.HTTPoison'",
      "'Elixir.SafeURL.TeslaMiddleware'"
    ],
    "packageName": "safeurl",
    "packageURL": "pkg:hex/safeurl",
    "product": "safeurl",
    "programFiles": [
      "lib/safeurl/safeurl.ex",
      "lib/safeurl/httpoison.ex",
      "lib/safeurl/tesla_middleware.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.SafeURL':validate/2"
      },
      {
        "name": "'Elixir.SafeURL.HTTPoison':get/3"
      },
      {
        "name": "'Elixir.SafeURL.TeslaMiddleware':call/3"
      }
    ],
    "repo": "https://github.com/slab/safeurl-elixir",
    "vendor": "Slab",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "0.1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:slab:safeurl:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.SafeURL'",
      "'Elixir.SafeURL.HTTPoison'",
      "'Elixir.SafeURL.TeslaMiddleware'"
    ],
    "packageName": "slab/safeurl-elixir",
    "packageURL": "pkg:github/slab/safeurl-elixir",
    "product": "safeurl",
    "programFiles": [
      "lib/safeurl/safeurl.ex",
      "lib/safeurl/httpoison.ex",
      "lib/safeurl/tesla_middleware.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.SafeURL':validate/2"
      },
      {
        "name": "'Elixir.SafeURL.HTTPoison':get/3"
      },
      {
        "name": "'Elixir.SafeURL.TeslaMiddleware':call/3"
      }
    ],
    "repo": "https://github.com/slab/safeurl-elixir",
    "vendor": "Slab",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "feabbd0a13f83028ab24b71710526e9da9841f70",
        "versionType": "git"
      }
    ]
  }
]

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15 Sep 2026 15:37Current
CVSS 49
13