Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier

{
  "id": "d164e21c61f05d583fece36b13d9322c28dbe446da2b0d91dfd93a911285a855",
  "url": "https://osv.dev/vulnerability/CVE-2026-50629",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier",
    "summary": "The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.",
    "evidence": "osv:CVE-2026-50629",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-50629",
      "aliases": [
        "CVE-2026-50629",
        "GHSA-f8p7-h97q-7vx7"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/cxf",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "82e9f60f994a7fad2d89f3c94e9090a4a8990c70"
                },
                {
                  "introduced": "04ccbfd709eef8f4af53d6237514fbe9db7ea81f"
                },
                {
                  "fixed": "d2b2776cd44a8d2f391194d90f50ce7b3d61a1f6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.1.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.2.0"
                      },
                      {
                        "fixed": "4.2.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "cxf-4.1.6",
            "cxf-4.2.1",
            "cxf-4.1.5",
            "cxf-4.2.0",
            "cxf-4.1.4",
            "cxf-4.1.3",
            "cxf-4.1.2",
            "cxf-4.1.1",
            "cxf-4.1.0",
            "cxf-4.0.4",
            "cxf-4.0.3",
            "cxf-4.0.2",
            "cxf-4.0.1",
            "cxf-4.0.0",
            "cxf-3.5.0",
            "cxf-3.4.1",
            "cxf-3.4.0",
            "cxf-3.3.3",
            "cxf-3.3.2",
            "cxf-3.3.1",
            "cxf-3.3.0",
            "cxf-3.2.5",
            "cxf-3.2.4",
            "cxf-3.2.3",
            "cxf-3.2.2",
            "cxf-3.2.1",
            "cxf-3.2.0",
            "cxf-3.1.4",
            "cxf-3.1.3",
            "cxf-3.1.2",
            "cxf-3.1.1",
            "cxf-3.1.0",
            "cxf-3.0.0",
            "cxf-3.0.0-milestone2",
            "cxf-2.7.2",
            "cxf-2.7.1",
            "cxf-2.7.0",
            "cxf-2.6.1",
            "cxf-2.6.0",
            "cxf-2.5.1",
            "cxf-2.5.0",
            "cxf-2.4.0",
            "cxf-2.3.0",
            "cxf-2.2.2",
            "cxf-2.2.1",
            "cxf-2.2",
            "cxf-2.1.2",
            "cxf-2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50629.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.303046699Z",
      "provider": "osv",
      "references": [
        "https://repo.maven.apache.org/maven2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50629.json",
        "https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-50629"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-93"
        ],
        "cna_assigner": "apache",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "4.2.0"
                  },
                  {
                    "fixed": "4.2.2"
                  },
                  {
                    "introduced": "4.0.0"
                  },
                  {
                    "fixed": "4.1.7"
                  },
                  {
                    "fixed": "3.6.12"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50629.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-50629",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 516668,
  "published_at": "2026-06-12T08:57:22.534+00:00"
}