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CVE-2026-86696

🗓️ 22 Oct 2026 06:59:07Reported by EEFType 
cve
 cve
🔗 web.nvd.nist.gov👁 28 Views🌐 WEB

Unauthenticated attacker can exhaust the Erlang VM atom table and crash the node in esaml.

Related
Detection
Affected
Refs
Paths
Vulners
CNA
Node
dropboxesamlMatch0.1.0
[
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:handnot2:esaml:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "esaml",
      "esaml_sp",
      "esaml_cowboy"
    ],
    "packageName": "handnot2/esaml",
    "packageURL": "pkg:github/handnot2/esaml",
    "product": "esaml",
    "programFiles": [
      "src/esaml.erl",
      "src/esaml_sp.erl",
      "src/esaml_cowboy.erl"
    ],
    "programRoutines": [
      {
        "name": "esaml:status_code_map/1"
      },
      {
        "name": "esaml:decode_logout_response/1"
      },
      {
        "name": "esaml_sp:validate_logout_response/2"
      },
      {
        "name": "esaml_cowboy:validate_logout/2"
      }
    ],
    "repo": "https://github.com/handnot2/esaml",
    "vendor": "handnot2",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "be692b56245071899757afa7ef47e43593d3de96",
        "versionType": "git"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:arekinath:esaml:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "esaml",
      "esaml_sp",
      "esaml_cowboy"
    ],
    "packageName": "arekinath/esaml",
    "packageURL": "pkg:github/arekinath/esaml",
    "product": "esaml",
    "programFiles": [
      "src/esaml.erl",
      "src/esaml_sp.erl",
      "src/esaml_cowboy.erl"
    ],
    "programRoutines": [
      {
        "name": "esaml:status_code_map/1"
      },
      {
        "name": "esaml:decode_logout_response/1"
      },
      {
        "name": "esaml_sp:validate_logout_response/2"
      },
      {
        "name": "esaml_cowboy:validate_logout/2"
      }
    ],
    "repo": "https://github.com/arekinath/esaml",
    "vendor": "arekinath",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "be692b56245071899757afa7ef47e43593d3de96",
        "versionType": "git"
      }
    ]
  },
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:dropbox:esaml:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "esaml",
      "esaml_sp",
      "esaml_cowboy"
    ],
    "packageName": "esaml",
    "packageURL": "pkg:hex/esaml",
    "product": "esaml",
    "programFiles": [
      "src/esaml.erl",
      "src/esaml_sp.erl",
      "src/esaml_cowboy.erl"
    ],
    "programRoutines": [
      {
        "name": "esaml:status_code_map/1"
      },
      {
        "name": "esaml:decode_logout_response/1"
      },
      {
        "name": "esaml_sp:validate_logout_response/2"
      },
      {
        "name": "esaml_cowboy:validate_logout/2"
      }
    ],
    "repo": "https://github.com/dropbox/esaml",
    "vendor": "dropbox",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "0.1.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:dropbox:esaml:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "esaml",
      "esaml_sp",
      "esaml_cowboy"
    ],
    "packageName": "dropbox/esaml",
    "packageURL": "pkg:github/dropbox/esaml",
    "product": "esaml",
    "programFiles": [
      "src/esaml.erl",
      "src/esaml_sp.erl",
      "src/esaml_cowboy.erl"
    ],
    "programRoutines": [
      {
        "name": "esaml:status_code_map/1"
      },
      {
        "name": "esaml:decode_logout_response/1"
      },
      {
        "name": "esaml_sp:validate_logout_response/2"
      },
      {
        "name": "esaml_cowboy:validate_logout/2"
      }
    ],
    "repo": "https://github.com/dropbox/esaml",
    "vendor": "dropbox",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "be692b56245071899757afa7ef47e43593d3de96",
        "versionType": "git"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
LogoutResponserequest body/single-logoutUnsigned LogoutResponse messages can be posted to the single-logout endpoint, causing the Erlang VM to mint permanent atoms for each distinct status value, leading to atom table exhaustion and a crash.CWE-770

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30 Oct 2026 19:20Current
5.9Medium risk
Vulners AI Score5.9
CVSS 48.2
EPSS0.0066
SSVC
28