{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "2.8.0"
              },
              {
                "last_affected": "2.8.11"
              },
              {
                "introduced": "2.9.0"
              },
              {
                "last_affected": "2.9.13"
              },
              {
                "introduced": "3.3.0"
              },
              {
                "last_affected": "3.3.15"
              },
              {
                "introduced": "4.0.0"
              },
              {
                "last_affected": "4.0.5"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "fb5b3ea1976cbd7846d5df555fa5e687b68364d9"
            },
            {
              "last_affected": "d3b3f85a3cf6571e4b2f4b64641e281050459ca7"
            },
            {
              "introduced": "1d8378bff7169aa7c111857c1dab0c6f8c330e3f"
            },
            {
              "last_affected": "9f3fefff292c25c972ffbc7122a30c776e37e018"
            },
            {
              "introduced": "a9001bf4c2cae68ad5d58c65d4d588922fec00f6"
            },
            {
              "last_affected": "5572a82b1a6c931d9a1656cadf8ba3df59102492"
            },
            {
              "introduced": "f1b207daac91ddc880c0883ec759809464c78700"
            },
            {
              "last_affected": "4fef8fb7a43d18042468233e8aea1ab34f5c842f"
            }
          ],
          "repo": "https://github.com/spring-projects/spring-kafka",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "vmware",
    "cwe_ids": [
      "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41727.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "4.0.0"
          },
          {
            "fixed": "4.0.5.1"
          },
          {
            "introduced": "3.3.0"
          },
          {
            "fixed": "3.3.15.1"
          },
          {
            "introduced": "3.2.0"
          },
          {
            "fixed": "3.2.14"
          },
          {
            "introduced": "2.9.0"
          },
          {
            "fixed": "2.9.14"
          },
          {
            "introduced": "2.8.0"
          },
          {
            "fixed": "2.8.12"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "4.0.0"
          },
          {
            "fixed": "4.0.5"
          },
          {
            "introduced": "3.3.0"
          },
          {
            "fixed": "3.3.15"
          },
          {
            "introduced": "3.2.0"
          },
          {
            "fixed": "3.2.13"
          },
          {
            "introduced": "2.9.0"
          },
          {
            "fixed": "2.9.13"
          },
          {
            "introduced": "2.8.0"
          },
          {
            "fixed": "2.8.11"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retry_topic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the message was in the retry sequence.\n\nAffected versions:\nSpring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.",
  "id": "CVE-2026-41727",
  "modified": "2026-07-08T05:37:53.203501825Z",
  "published": "2026-06-09T23:49:10.215Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-41727"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41727.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41727"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "In Spring for Apache Kafka, forged retry topic headers subvert retry routing and backoff behavior"
}