Security advisory

{
  "id": "8cf8ce15104137cea53e2099685a27bfd9348e07e6a5c0f7b09ff8a5370990ca",
  "url": "https://osv.dev/vulnerability/CVE-2020-26238",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-26238",
    "summary": "Cron-utils is a Java library to parse, validate, migrate crons as well as get human readable descriptions for them. In cron-utils before version 9.1.3, a template Injection vulnerability is present. This enables attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Only projects using the @Cron annotation to validate untrusted Cron expressions are affected. This issue was patched in version 9.1.3.",
    "evidence": "osv:CVE-2020-26238",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-26238",
      "aliases": [
        "CVE-2020-26238",
        "GHSA-pfj3-56hm-jwq5"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jmrozanec/cron-utils",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b994c8d85ab8790c701521e8e4136a21d2decb03"
                },
                {
                  "fixed": "4cf373f7352f5d95f0bf6512af8af326b31c835e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:cron-utils_project:cron-utils:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "9.1.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4cf373f7352f5d95f0bf6512af8af326b31c835e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.1.2",
            "9.0.2",
            "9.0.1",
            "9.0.0",
            "8.1.1",
            "8.0.0",
            "7.0.6",
            "7.0.5",
            "7.0.4",
            "7.0.3",
            "7.0.2",
            "7.0.1",
            "7.0.0",
            "6.0.0",
            "5.0.5",
            "5.0.4",
            "4.1.1",
            "5.0.3",
            "5.0.2",
            "5.0.1",
            "5.0.0",
            "4.1.0",
            "4.0.1",
            "4.0.0",
            "3.1.7",
            "3.1.6",
            "3.1.5",
            "3.1.4",
            "3.1.1",
            "3.0.0",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26238.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:56.515409105Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r390bb7630b7ea8f02bf7adbbe69c0ae8b562c527d663c543d965f959%40%3Cgitbox.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r432a69a1a85cbcb1f1bad2aa0fbfce0367bf894bf917f6ed7118e7f0%40%3Cissues.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r50e1b5544c37e408ed7e9a958b28237b1cb9660ba2b3dba46f343e23%40%3Cissues.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r5f601d15292e3302ad0ae0e89527029546945b1cd5837af7e838d354%40%3Cdev.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r71083c759dc627f198571b3d48b6745fe798b1d53c34f7ef8de9e7dd%40%3Cissues.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r737406bc17d49ffe8fe6a8828d390ee0a02e45e5a5b4f931180b9a93%40%3Cissues.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r855aead591697dc2e85faf66c99036e49f492431940b78d4e6d895b5%40%3Cgitbox.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r96937fc9c82f3201b59311c067e97bce71123944f93102169a95bf5c%40%3Cissues.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/r9ae9a9fb1c8e2bf95c676e7e4cd06aa04f0a3a8a9ec1a6b787afb00f%40%3Cissues.hive.apache.org%3E",
        "https://lists.apache.org/thread.html/ra9e81244d323898dde3c979dd7df6996e4037d14a01b6629ea443548%40%3Cissues.hive.apache.org%3E",
        "https://github.com/jmrozanec/cron-utils/issues/461",
        "https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e",
        "https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-26238",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384067,
  "published_at": "2020-11-25T00:15:10.747+00:00"
}