Security advisory

{
  "id": "2dd3371f66c79c4eade24e386fb7928fd72c38742ae7727327d8f037139b487d",
  "url": "https://osv.dev/vulnerability/CVE-2021-40110",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-40110",
    "summary": "In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking.",
    "evidence": "osv:CVE-2021-40110",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-40110",
      "aliases": [
        "CVE-2021-40110",
        "GHSA-r58x-wjg8-63m9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/james-project",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "863d81872046ecc793fa782a74f87a01b6a22659"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:james:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.6.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "james-project-3.6.0",
            "james-project-3.4.0",
            "james-project-3.3.0",
            "pre-3.1.0",
            "james-project-3.0.0",
            "cassandra_migration_v1_to_v2",
            "james-project-3.0.0-RC1",
            "james-project-3.0.0-beta5",
            "james-project-3.0-beta5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40110.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:03.617573733Z",
      "provider": "osv",
      "references": [
        "https://www.openwall.com/lists/oss-security/2022/01/04/2"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-40110",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440301,
  "published_at": "2022-01-04T09:15:07.327+00:00"
}