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    2 vulnerabilities found for prebid-server-java by prebid

    CVE-2026-54734 (GCVE-0-2026-54734)

    Vulnerability from nvd – Published: 2026-09-17 21:59 – Updated: 2026-09-17 21:59
    VLAI
    Title
    Prebid Server Java: Vulnerability to request forgery allows for possible host environment data extraction
    Summary
    Prebid Server Java is the Java version of Prebid Server. Prior to 3.43.0, certain bidder adapters interpolate user-supplied parameters into outbound request URLs without using HttpUtil to validate the resulting domain or path segment. A malicious actor who can supply bid-request parameters can cause the server to send HTTP requests to unintended destinations, potentially reaching internal network services, metadata endpoints, or other sensitive server endpoints with the server's network access. This issue is fixed in version 3.43.0.
    Severity
    10 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Vendor Product Version
    prebid prebid-server-java Affected: < 3.43.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "prebid-server-java",
          "vendor": "prebid",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.43.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Prebid Server Java is the Java version of Prebid Server. Prior to 3.43.0, certain bidder adapters interpolate user-supplied parameters into outbound request URLs without using HttpUtil to validate the resulting domain or path segment. A malicious actor who can supply bid-request parameters can cause the server to send HTTP requests to unintended destinations, potentially reaching internal network services, metadata endpoints, or other sensitive server endpoints with the server\u0027s network access. This issue is fixed in version 3.43.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T21:59:45.873Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/prebid/prebid-server-java/security/advisories/GHSA-fr2c-g2f8-qchg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/prebid/prebid-server-java/security/advisories/GHSA-fr2c-g2f8-qchg"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/pull/4522",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/pull/4522"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/commit/a129a685b6fc54441c1a779ce29ea4ec20c2e09f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/commit/a129a685b6fc54441c1a779ce29ea4ec20c2e09f"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/commit/d0c723ce36aa09712c825ea9625d978f45d29a1c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/commit/d0c723ce36aa09712c825ea9625d978f45d29a1c"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/releases/tag/3.43.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/releases/tag/3.43.0"
        }
      ],
      "source": {
        "advisory": "GHSA-fr2c-g2f8-qchg",
        "discovery": "UNKNOWN"
      },
      "title": "Prebid Server Java: Vulnerability to request forgery allows for possible host environment data extraction"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54734",
    "datePublished": "2026-09-17T21:59:45.873Z",
    "dateReserved": "2026-06-15T23:07:33.233Z",
    "dateUpdated": "2026-09-17T21:59:45.873Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-54734 (GCVE-0-2026-54734)

    Vulnerability from cvelistv5 – Published: 2026-09-17 21:59 – Updated: 2026-09-17 21:59
    VLAI
    Title
    Prebid Server Java: Vulnerability to request forgery allows for possible host environment data extraction
    Summary
    Prebid Server Java is the Java version of Prebid Server. Prior to 3.43.0, certain bidder adapters interpolate user-supplied parameters into outbound request URLs without using HttpUtil to validate the resulting domain or path segment. A malicious actor who can supply bid-request parameters can cause the server to send HTTP requests to unintended destinations, potentially reaching internal network services, metadata endpoints, or other sensitive server endpoints with the server's network access. This issue is fixed in version 3.43.0.
    Severity
    10 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Vendor Product Version
    prebid prebid-server-java Affected: < 3.43.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "prebid-server-java",
          "vendor": "prebid",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.43.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Prebid Server Java is the Java version of Prebid Server. Prior to 3.43.0, certain bidder adapters interpolate user-supplied parameters into outbound request URLs without using HttpUtil to validate the resulting domain or path segment. A malicious actor who can supply bid-request parameters can cause the server to send HTTP requests to unintended destinations, potentially reaching internal network services, metadata endpoints, or other sensitive server endpoints with the server\u0027s network access. This issue is fixed in version 3.43.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T21:59:45.873Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/prebid/prebid-server-java/security/advisories/GHSA-fr2c-g2f8-qchg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/prebid/prebid-server-java/security/advisories/GHSA-fr2c-g2f8-qchg"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/pull/4522",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/pull/4522"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/commit/a129a685b6fc54441c1a779ce29ea4ec20c2e09f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/commit/a129a685b6fc54441c1a779ce29ea4ec20c2e09f"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/commit/d0c723ce36aa09712c825ea9625d978f45d29a1c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/commit/d0c723ce36aa09712c825ea9625d978f45d29a1c"
        },
        {
          "name": "https://github.com/prebid/prebid-server-java/releases/tag/3.43.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/prebid/prebid-server-java/releases/tag/3.43.0"
        }
      ],
      "source": {
        "advisory": "GHSA-fr2c-g2f8-qchg",
        "discovery": "UNKNOWN"
      },
      "title": "Prebid Server Java: Vulnerability to request forgery allows for possible host environment data extraction"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54734",
    "datePublished": "2026-09-17T21:59:45.873Z",
    "dateReserved": "2026-06-15T23:07:33.233Z",
    "dateUpdated": "2026-09-17T21:59:45.873Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}