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    2 vulnerabilities found for docker-heimdall by linuxserver

    CVE-2025-50578 (GCVE-0-2025-50578)

    Vulnerability from cvelistv5 – Published: 2025-07-30 00:00 – Updated: 2025-07-30 15:43
    VLAI
    Summary
    LinuxServer.io heimdall 2.6.3-ls307 contains a vulnerability in how it handles user-supplied HTTP headers, specifically `X-Forwarded-Host` and `Referer`. An unauthenticated remote attacker can manipulate these headers to perform Host Header Injection and Open Redirect attacks. This allows the loading of external resources from attacker-controlled domains and unintended redirection of users, potentially enabling phishing, UI redress, and session theft. The vulnerability exists due to insufficient validation and trust of untrusted input, affecting the integrity and trustworthiness of the application.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
    • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
    • CWE-20 - Improper Input Validation
    Assigner
    References
    Show details on NVD website
    To clipboard 

    {
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    "adp": [
      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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                "id": "CVE-2025-50578",
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-30T15:42:23.743284Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-74",
                "description": "CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-601",
                "description": "CWE-601 URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
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                "description": "CWE-20 Improper Input Validation",
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                "type": "CWE"
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-30T15:43:42.692Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
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        }
      ],
      "problemTypes": [
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          "descriptions": [
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        },
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          "url": "https://github.com/linuxserver/Heimdall/issues/1451"
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    "dateReserved": "2025-06-16T00:00:00.000Z",
    "dateUpdated": "2025-07-30T15:43:42.692Z",
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}

    CVE-2025-50578 (GCVE-0-2025-50578)

    Vulnerability from nvd – Published: 2025-07-30 00:00 – Updated: 2025-07-30 15:43
    VLAI
    Summary
    LinuxServer.io heimdall 2.6.3-ls307 contains a vulnerability in how it handles user-supplied HTTP headers, specifically `X-Forwarded-Host` and `Referer`. An unauthenticated remote attacker can manipulate these headers to perform Host Header Injection and Open Redirect attacks. This allows the loading of external resources from attacker-controlled domains and unintended redirection of users, potentially enabling phishing, UI redress, and session theft. The vulnerability exists due to insufficient validation and trust of untrusted input, affecting the integrity and trustworthiness of the application.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • n/a
    • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
    • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
    • CWE-20 - Improper Input Validation
    Assigner
    References
    Show details on NVD website
    To clipboard 

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          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
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              "content": {
                "id": "CVE-2025-50578",
                "options": [
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                  },
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-30T15:42:23.743284Z",
                "version": "2.0.3"
              },
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          }
        ],
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                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-601",
                "description": "CWE-601 URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-20",
                "description": "CWE-20 Improper Input Validation",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
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          "dateUpdated": "2025-07-30T15:43:42.692Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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