FKIE_CVE-2026-48856

Vulnerability from fkie_nvd - Published: 2026-06-10 16:17 - Updated: 2026-10-26 11:10
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Sensitive Data Exposure vulnerability in Erlang OTP inets (httpc_response module) allows Retrieve Embedded Sensitive Data. The httpc client forwards the Authorization and Proxy-Authorization request headers to redirect targets without checking whether the redirect crosses an origin boundary. httpc_response:redirect/2 constructs the redirected request by updating only the host field of the header record; all other fields (including authorization and proxy_authorization) are copied verbatim. The redirect target host is never compared against the original host. autoredirect defaults to true, so this affects all httpc callers that do not explicitly disable automatic redirects. An attacker who controls a server that the victim contacts via httpc can issue a cross-origin 3xx redirect to a server they also control. The Authorization header (including Basic credentials derived from URL userinfo via httpc_request:handle_user_info/2) is forwarded to the redirect target, allowing credential theft. The same applies to the Proxy-Authorization header. This vulnerability is associated with program files lib/inets/src/http_client/httpc_response.erl. This issue affects OTP from OTP 17.0 before OTP 27.3.4.19, OTP 28.5.0.8, and OTP 29.1.2, corresponding to inets from 5.10 before 9.3.2.8, 9.6.2.4, and 9.8.1. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.
References
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://cna.erlef.org/cves/CVE-2026-48856.htmlMitigation, Third Party Advisory
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/erlang/otp/commit/f78fae9294886f95545a2212671282eda230def1
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/erlang/otp/security/advisories/GHSA-m75x-4vwg-ggjhMitigation, Vendor Advisory
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://osv.dev/vulnerability/EEF-CVE-2026-48856Mitigation, Third Party Advisory
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://www.erlang.org/doc/system/versions.html#order-of-versionsProduct
Impacted products
Vendor Product Version
erlang erlang\/inets *
erlang erlang\/inets *
erlang erlang\/inets *
erlang erlang\/otp *
erlang erlang\/otp *
erlang erlang\/otp *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "modules": [
            "httpc_response"
          ],
          "packageName": "otp",
          "packageURL": "pkg:software-id/erlang.org/otp",
          "product": "OTP",
          "programFiles": [
            "lib/inets/src/http_client/httpc_response.erl"
          ],
          "programRoutines": [
            {
              "name": "httpc_response:redirect/2"
            }
          ],
          "vendor": "Erlang",
          "versions": [
            {
              "changes": [
                {
                  "at": "27.3.4.19",
                  "status": "unaffected"
                },
                {
                  "at": "28.5.0.8",
                  "status": "unaffected"
                },
                {
                  "at": "29.1.2",
                  "status": "unaffected"
                }
              ],
              "lessThan": "*",
              "status": "affected",
              "version": "17.0",
              "versionType": "otp"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "modules": [
            "httpc_response"
          ],
          "packageName": "inets",
          "packageURL": "pkg:otp/inets?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp\u0026vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Fotp.git",
          "product": "OTP",
          "programFiles": [
            "src/http_client/httpc_response.erl"
          ],
          "programRoutines": [
            {
              "name": "httpc_response:redirect/2"
            }
          ],
          "repo": "https://github.com/erlang/otp",
          "vendor": "Erlang",
          "versions": [
            {
              "changes": [
                {
                  "at": "9.3.2.8",
                  "status": "unaffected"
                },
                {
                  "at": "9.6.2.4",
                  "status": "unaffected"
                },
                {
                  "at": "9.8.1",
                  "status": "unaffected"
                }
              ],
              "lessThan": "*",
              "status": "affected",
              "version": "5.10",
              "versionType": "otp"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "modules": [
            "httpc_response"
          ],
          "packageName": "erlang/otp",
          "packageURL": "pkg:github/erlang/otp",
          "product": "OTP",
          "programFiles": [
            "lib/inets/src/http_client/httpc_response.erl"
          ],
          "programRoutines": [
            {
              "name": "httpc_response:redirect/2"
            }
          ],
          "repo": "https://github.com/erlang/otp",
          "vendor": "Erlang",
          "versions": [
            {
              "lessThan": "f78fae9294886f95545a2212671282eda230def1",
              "status": "affected",
              "version": "84adefa331c4159d432d22840663c38f155cd4c1",
              "versionType": "git"
            },
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "f78fae9294886f95545a2212671282eda230def1",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:erlang:erlang\\/inets:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0B10D06D-6CAA-4AE6-9971-9D21A7347468",
              "versionEndExcluding": "9.3.2.6",
              "versionStartIncluding": "5.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:erlang:erlang\\/inets:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FF460097-653F-4CA0-8FF7-1F674F6D956E",
              "versionEndExcluding": "9.6.2.2",
              "versionStartIncluding": "9.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:erlang:erlang\\/inets:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "85B29B67-5B41-4987-A71F-A7A0458E49E4",
              "versionEndExcluding": "9.7.1",
              "versionStartIncluding": "9.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BF42A5F2-4C27-43FE-B5FA-17A3422B9649",
              "versionEndExcluding": "27.3.4.13",
              "versionStartIncluding": "17.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "902ED4C3-B9DE-4ABC-9BEA-D23DA4F5D373",
              "versionEndExcluding": "28.5.0.2",
              "versionStartIncluding": "28.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F4AB1573-4E81-4338-B65A-B3C94C7249FA",
              "versionEndExcluding": "29.0.2",
              "versionStartIncluding": "29.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sensitive Data Exposure vulnerability in Erlang OTP inets (httpc_response module) allows Retrieve Embedded Sensitive Data.\n\nThe httpc client forwards the Authorization and Proxy-Authorization request headers to redirect targets without checking whether the redirect crosses an origin boundary. httpc_response:redirect/2 constructs the redirected request by updating only the host field of the header record; all other fields (including authorization and proxy_authorization) are copied verbatim. The redirect target host is never compared against the original host.\n\nautoredirect defaults to true, so this affects all httpc callers that do not explicitly disable automatic redirects.\n\nAn attacker who controls a server that the victim contacts via httpc can issue a cross-origin 3xx redirect to a server they also control. The Authorization header (including Basic credentials derived from URL userinfo via httpc_request:handle_user_info/2) is forwarded to the redirect target, allowing credential theft. The same applies to the Proxy-Authorization header.\n\nThis vulnerability is associated with program files lib/inets/src/http_client/httpc_response.erl.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.19, OTP\u00a028.5.0.8, and OTP\u00a029.1.2, corresponding to inets from 5.10 before 9.3.2.8, 9.6.2.4, and 9.8.1. Whether OTP before OTP\u00a017.0, corresponding to inets before 5.10, is affected is unknown."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de exposici\u00f3n de datos sensibles en Erlang OTP inets (m\u00f3dulo httpc_response) permite la recuperaci\u00f3n de datos sensibles incrustados.\n\nEl cliente httpc reenv\u00eda los encabezados de solicitud \u2019Authorization\u2019 y \u2019Proxy-Authorization\u2019 a destinos de redirecci\u00f3n sin verificar si la redirecci\u00f3n cruza un l\u00edmite de origen. httpc_response:redirect/2 construye la solicitud redirigida actualizando solo el campo \u2019host\u2019 del registro del encabezado; todos los dem\u00e1s campos (incluidos \u2019authorization\u2019 y \u2019proxy_authorization\u2019) se copian textualmente. El host de destino de la redirecci\u00f3n nunca se compara con el host original.\n\n\u2019autoredirect\u2019 tiene un valor predeterminado de \u2019true\u2019, por lo que esto afecta a todos los llamadores de httpc que no deshabilitan expl\u00edcitamente las redirecciones autom\u00e1ticas.\n\nUn atacante que controla un servidor al que la v\u00edctima contacta a trav\u00e9s de httpc puede emitir una redirecci\u00f3n 3xx de origen cruzado a un servidor que tambi\u00e9n controlan. El encabezado \u2019Authorization\u2019 (incluidas las credenciales b\u00e1sicas derivadas de la informaci\u00f3n de usuario de la URL a trav\u00e9s de httpc_request:handle_user_info/2) se reenv\u00eda al destino de la redirecci\u00f3n, permitiendo el robo de credenciales. Lo mismo se aplica al encabezado \u2019Proxy-Authorization\u2019.\n\nEsta vulnerabilidad est\u00e1 asociada con los archivos de programa lib/inets/src/http_client/httpc_response.erl.\n\nEste problema afecta a OTP desde la versi\u00f3n 17.0 de OTP hasta versiones anteriores a la 27.3.4.19 de OTP, y a las versiones 28.5.0.8 de OTP y 29.1.2 de OTP, lo que corresponde a inets desde la versi\u00f3n 5.10 hasta versiones anteriores a la 9.3.2.8, y a las versiones 9.6.2.4 y 9.8.1. Se desconoce si OTP en versiones anteriores a la 17.0 de OTP, lo que corresponde a inets en versiones anteriores a la 5.10, est\u00e1 afectado."
    }
  ],
  "id": "CVE-2026-48856",
  "lastModified": "2026-10-26T11:10:00.157",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48856",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-10T16:23:52.053802Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-10T16:17:10.053",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://cna.erlef.org/cves/CVE-2026-48856.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/erlang/otp/commit/f78fae9294886f95545a2212671282eda230def1"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
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        "Vendor Advisory"
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    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48856"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "tags": [
        "Product"
      ],
      "url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}



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