Vulnerability-Lookup

CVE-2020-26238 (GCVE-0-2020-26238)

Vulnerability from cvelistv5 – Published: 2020-11-24 23:50 – Updated: 2024-08-04 15:56

Title

Critical vulnerability found in cron-utils

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.

Severity

7.9 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CWE

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Assigner

GitHub_M mitre root

References

13 references

URL	Tags
https://github.com/jmrozanec/cron-utils/security/…	x_refsource_CONFIRM
https://github.com/jmrozanec/cron-utils/issues/461	x_refsource_MISC
https://github.com/jmrozanec/cron-utils/commit/4c…	x_refsource_MISC
https://lists.apache.org/thread.html/r96937fc9c82…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r5f601d15292…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/ra9e81244d32…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r855aead5916…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9ae9a9fb1c8…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r71083c759dc…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r50e1b5544c3…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r432a69a1a85…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r737406bc17d…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r390bb7630b7…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version	CPE status
jmrozanec	cron-utils	Affected: < 9.1.3	guessed

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    "dateReserved": "2020-10-01T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:56:04.555Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-26238",
      "date": "2026-09-20",
      "epss": "0.04204",
      "percentile": "0.90506"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
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                    "versionEndExcluding": "9.1.3",
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                  }
                ],
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              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "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."
          },
          {
            "lang": "es",
            "value": "Cron-utils es una biblioteca de Java para analizar, comprobar, migrar crons y obtener descripciones legibles por humanos para ellos.\u0026#xa0;En cron-utils versiones anteriores a  9.1.3, se presenta una vulnerabilidad de inyecci\u00f3n de plantilla.\u0026#xa0;Esto permite a atacantes inyectar expresiones EL de Java arbitrarias, conllevando a una vulnerabilidad de Ejecuci\u00f3n de C\u00f3digo Remota (RCE) no autenticada.\u0026#xa0;Solo est\u00e1n afectados los proyectos que usan la anotaci\u00f3n @Cron para comprobar expresiones Cron que no son confiables.\u0026#xa0;Este problema se corrigi\u00f3 en la versi\u00f3n 9.1.3"
          }
        ],
        "id": "CVE-2020-26238",
        "lastModified": "2024-11-21T05:19:37.353",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
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                "scope": "CHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
                "version": "3.1"
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                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
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              "source": "nvd@nist.gov",
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        "published": "2020-11-25T00:15:10.747",
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          },
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          },
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          },
          {
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          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-74"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
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        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T07:35:29+00:00",
      "cve": "CVE-2020-26238",
      "id": "CVE-2020-26238",
      "initial_release_date": "2020-11-24T00:00:00+00:00",
      "product_status:fixed": "3",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "cron-utils: template injection allows attackers to inject arbitrary Java EL expressions leading to remote code execution",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-26238.json",
      "version": "3"
    }
  }
}

FKIE_CVE-2020-26238

Vulnerability from fkie_nvd - Published: 2020-11-25 00:15 - Updated: 2026-06-17 03:07

Severity

7.9 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/jmrozanec/cron-utils/issues/461	Exploit, Issue Tracking, Third Party Advisory
security-advisories@github.com	https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5	Exploit, Third Party Advisory
security-advisories@github.com	https://lists.apache.org/thread.html/r390bb7630b7ea8f02bf7adbbe69c0ae8b562c527d663c543d965f959%40%3Cgitbox.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r432a69a1a85cbcb1f1bad2aa0fbfce0367bf894bf917f6ed7118e7f0%40%3Cissues.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r50e1b5544c37e408ed7e9a958b28237b1cb9660ba2b3dba46f343e23%40%3Cissues.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r5f601d15292e3302ad0ae0e89527029546945b1cd5837af7e838d354%40%3Cdev.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r71083c759dc627f198571b3d48b6745fe798b1d53c34f7ef8de9e7dd%40%3Cissues.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r737406bc17d49ffe8fe6a8828d390ee0a02e45e5a5b4f931180b9a93%40%3Cissues.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r855aead591697dc2e85faf66c99036e49f492431940b78d4e6d895b5%40%3Cgitbox.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r96937fc9c82f3201b59311c067e97bce71123944f93102169a95bf5c%40%3Cissues.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/r9ae9a9fb1c8e2bf95c676e7e4cd06aa04f0a3a8a9ec1a6b787afb00f%40%3Cissues.hive.apache.org%3E
security-advisories@github.com	https://lists.apache.org/thread.html/ra9e81244d323898dde3c979dd7df6996e4037d14a01b6629ea443548%40%3Cissues.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/jmrozanec/cron-utils/issues/461	Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r390bb7630b7ea8f02bf7adbbe69c0ae8b562c527d663c543d965f959%40%3Cgitbox.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r432a69a1a85cbcb1f1bad2aa0fbfce0367bf894bf917f6ed7118e7f0%40%3Cissues.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r50e1b5544c37e408ed7e9a958b28237b1cb9660ba2b3dba46f343e23%40%3Cissues.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r5f601d15292e3302ad0ae0e89527029546945b1cd5837af7e838d354%40%3Cdev.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r71083c759dc627f198571b3d48b6745fe798b1d53c34f7ef8de9e7dd%40%3Cissues.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r737406bc17d49ffe8fe6a8828d390ee0a02e45e5a5b4f931180b9a93%40%3Cissues.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r855aead591697dc2e85faf66c99036e49f492431940b78d4e6d895b5%40%3Cgitbox.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r96937fc9c82f3201b59311c067e97bce71123944f93102169a95bf5c%40%3Cissues.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/r9ae9a9fb1c8e2bf95c676e7e4cd06aa04f0a3a8a9ec1a6b787afb00f%40%3Cissues.hive.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108	https://lists.apache.org/thread.html/ra9e81244d323898dde3c979dd7df6996e4037d14a01b6629ea443548%40%3Cissues.hive.apache.org%3E

Impacted products

	Vendor	Product	Version
	cron-utils_project	cron-utils	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "cron-utils",
          "vendor": "jmrozanec",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 9.1.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
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              "criteria": "cpe:2.3:a:cron-utils_project:cron-utils:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8238FCBC-72CF-45D6-93F9-FF1B7D14046F",
              "versionEndExcluding": "9.1.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Cron-utils es una biblioteca de Java para analizar, comprobar, migrar crons y obtener descripciones legibles por humanos para ellos.\u0026#xa0;En cron-utils versiones anteriores a  9.1.3, se presenta una vulnerabilidad de inyecci\u00f3n de plantilla.\u0026#xa0;Esto permite a atacantes inyectar expresiones EL de Java arbitrarias, conllevando a una vulnerabilidad de Ejecuci\u00f3n de C\u00f3digo Remota (RCE) no autenticada.\u0026#xa0;Solo est\u00e1n afectados los proyectos que usan la anotaci\u00f3n @Cron para comprobar expresiones Cron que no son confiables.\u0026#xa0;Este problema se corrigi\u00f3 en la versi\u00f3n 9.1.3"
    }
  ],
  "id": "CVE-2020-26238",
  "lastModified": "2026-06-17T03:07:53.570",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
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        "obtainAllPrivilege": false,
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    "cvssMetricV31": [
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          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
          "version": "3.1"
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        "source": "security-advisories@github.com",
        "type": "Secondary"
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        "exploitabilityScore": 2.2,
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        "source": "nvd@nist.gov",
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      }
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  "vulnStatus": "Modified",
  "weaknesses": [
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}

GHSA-PFJ3-56HM-JWQ5

Vulnerability from github – Published: 2020-11-24 23:48 – Updated: 2021-01-07 22:39

Summary

Template injection in cron-utils

Details

Impact

A Template Injection was identified in cron-utils enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Versions up to 9.1.2 are susceptible to this vulnerability. Please note, that only projects using the @Cron annotation to validate untrusted Cron expressions are affected.

Patches

The issue was patched and a new version released. Please upgrade to version 9.1.3.

Workarounds

There are no known workarounds up to this moment.

References

A description of the issue is provided in issue 461

For more information

If you have any questions or comments about this advisory: * Open an issue in cron-utils Github repository

Severity

7.9 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.cronutils:cron-utils"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26238"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-74"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-11-24T23:48:26Z",
    "nvd_published_at": "2020-11-25T00:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nA Template Injection was identified in cron-utils enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Versions up to 9.1.2 are susceptible to this vulnerability. Please note, that only projects using the @Cron annotation to validate untrusted Cron expressions are affected.\n\n### Patches\nThe issue was patched and a new version released. Please upgrade to version 9.1.3.\n\n### Workarounds\nThere are no known workarounds up to this moment.\n\n### References\nA description of the issue is provided in [issue 461](https://github.com/jmrozanec/cron-utils/issues/461)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [cron-utils Github repository](https://github.com/jmrozanec/cron-utils)",
  "id": "GHSA-pfj3-56hm-jwq5",
  "modified": "2021-01-07T22:39:49Z",
  "published": "2020-11-24T23:48:38Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26238"
    },
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      "type": "WEB",
      "url": "https://github.com/jmrozanec/cron-utils/issues/461"
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    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r96937fc9c82f3201b59311c067e97bce71123944f93102169a95bf5c@%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r9ae9a9fb1c8e2bf95c676e7e4cd06aa04f0a3a8a9ec1a6b787afb00f@%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/ra9e81244d323898dde3c979dd7df6996e4037d14a01b6629ea443548@%3Cissues.hive.apache.org%3E"
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  ],
  "schema_version": "1.4.0",
  "severity": [
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      "type": "CVSS_V3"
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  "summary": "Template injection in cron-utils"
}

GSD-2020-26238

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

Aliases

CVE-2020-26238

Aliases

CVE-2020-26238

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2020-26238",
    "description": "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.",
    "id": "GSD-2020-26238",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:3207",
      "https://access.redhat.com/errata/RHSA-2021:3205",
      "https://access.redhat.com/errata/RHSA-2021:1004"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/r390bb7630b7ea8f02bf7adbbe69c0ae8b562c527d663c543d965f959@%3Cgitbox.hive.apache.org%3E"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-pfj3-56hm-jwq5",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,9.1.3)",
          "affected_versions": "All versions before 9.1.3",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-74",
            "CWE-937"
          ],
          "date": "2021-03-24",
          "description": "Cron-utils is a Java library to parse, validate, migrate crons as well as get human readable descriptions for them. In cron-utils, 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 ",
          "fixed_versions": [
            "9.1.3"
          ],
          "identifier": "CVE-2020-26238",
          "identifiers": [
            "CVE-2020-26238",
            "GHSA-pfj3-56hm-jwq5"
          ],
          "not_impacted": "All versions starting from 9.1.3",
          "package_slug": "maven/com.cronutils/cron-utils",
          "pubdate": "2020-11-25",
          "solution": "Upgrade to version 9.1.3 or above.",
          "title": "Injection Vulnerability",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26238",
            "https://github.com/jmrozanec/cron-utils/issues/461"
          ],
          "uuid": "6a29cc24-23e5-42cd-8edd-3c43524615aa"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/jmrozanec/cron-utils/issues/461",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://github.com/jmrozanec/cron-utils/issues/461"
            },
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              "name": "https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e",
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                "Third Party Advisory"
              ],
              "url": "https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e"
            },
            {
              "name": "https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5",
              "refsource": "CONFIRM",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5"
            },
            {
              "name": "[hive-issues] 20210316 [jira] [Assigned] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r96937fc9c82f3201b59311c067e97bce71123944f93102169a95bf5c@%3Cissues.hive.apache.org%3E"
            },
            {
              "name": "[hive-dev] 20210316 [jira] [Created] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
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            },
            {
              "name": "[hive-issues] 20210316 [jira] [Work started] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/ra9e81244d323898dde3c979dd7df6996e4037d14a01b6629ea443548@%3Cissues.hive.apache.org%3E"
            },
            {
              "name": "[hive-issues] 20210316 [jira] [Work logged] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r9ae9a9fb1c8e2bf95c676e7e4cd06aa04f0a3a8a9ec1a6b787afb00f@%3Cissues.hive.apache.org%3E"
            },
            {
              "name": "[hive-issues] 20210316 [jira] [Updated] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r71083c759dc627f198571b3d48b6745fe798b1d53c34f7ef8de9e7dd@%3Cissues.hive.apache.org%3E"
            },
            {
              "name": "[hive-gitbox] 20210316 [GitHub] [hive] achennagiri opened a new pull request #2081: HIVE-24890: Upgrade the cron-utils library from 8.1.1 to 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r855aead591697dc2e85faf66c99036e49f492431940b78d4e6d895b5@%3Cgitbox.hive.apache.org%3E"
            },
            {
              "name": "[hive-issues] 20210317 [jira] [Commented] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r50e1b5544c37e408ed7e9a958b28237b1cb9660ba2b3dba46f343e23@%3Cissues.hive.apache.org%3E"
            },
            {
              "name": "[hive-issues] 20210317 [jira] [Work logged] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r737406bc17d49ffe8fe6a8828d390ee0a02e45e5a5b4f931180b9a93@%3Cissues.hive.apache.org%3E"
            },
            {
              "name": "[hive-issues] 20210317 [jira] [Resolved] (HIVE-24890) Upgrade to cron-utils 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r432a69a1a85cbcb1f1bad2aa0fbfce0367bf894bf917f6ed7118e7f0@%3Cissues.hive.apache.org%3E"
            },
            {
              "name": "[hive-gitbox] 20210317 [GitHub] [hive] yongzhi merged pull request #2081: HIVE-24890: Upgrade the cron-utils library from 8.1.1 to 9.1.3 due to CVE-2020-26238",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.apache.org/thread.html/r390bb7630b7ea8f02bf7adbbe69c0ae8b562c527d663c543d965f959@%3Cgitbox.hive.apache.org%3E"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-03-24T01:16Z",
      "publishedDate": "2020-11-25T00:15Z"
    }
  }
}

RHSA-2021:1004

Vulnerability from csaf_redhat - Published: 2021-03-29 11:12 - Updated: 2026-08-11 15:13

Summary

Red Hat Security Advisory: Red Hat build of Quarkus 1.11.6 release and security update

Severity

Moderate

Scope

4 vulnerabilities in this advisory, including CVE-2020-26238.

CVE-2020-26238

A flaw was found in cron-utils. End applications passing unsanitized user input which is subsequently parsed by the `@Cron` annotation can allow an attacker to execute arbitrary expressions using JavaEL which will be implicitly executed by the constraint validator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

8.1 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2021:1004

Open the full advisory

RHSA-2021:3205

Vulnerability from csaf_redhat - Published: 2021-08-18 09:13 - Updated: 2026-09-07 14:20

Summary

Red Hat Security Advisory: Red Hat Integration Camel-K 1.4 release and security update

Severity

Moderate

Scope

18 vulnerabilities in this advisory, including CVE-2020-26238.

CVE-2020-26238

8.1 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2021:3205

Open the full advisory

RHSA-2021:3207

Vulnerability from csaf_redhat - Published: 2021-08-18 09:54 - Updated: 2026-08-11 15:13

Summary

Red Hat Security Advisory: Red Hat Integration Camel Quarkus Tech-Preview 2 security update

Severity

Moderate

Scope

8 vulnerabilities in this advisory, including CVE-2020-26238.

CVE-2020-26238

8.1 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2021:3207

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2020-26238 (GCVE-0-2020-26238)

FKIE_CVE-2020-26238

GHSA-PFJ3-56HM-JWQ5

Impact

Patches

Workarounds

References

For more information

GSD-2020-26238

RHSA-2021:1004

RHSA-2021:3205

RHSA-2021:3207

Tags

Sightings

Nomenclature

Related by attack behaviour