{"id":"CVE-2021-21371","aliases":["EUVD-2021-0252","GHSA-8278-88vv-x98r","PYSEC-2021-60"],"status":"published","title":"Execution of untrusted code through config file","description":"Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as \"tenable-jira-cloud\". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().","severity":{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00452,"percentile":0.39578,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2021-03-10T21:50:14Z","modified":"2026-10-20T10:54:28Z","fixes":[{"ecosystem":"PyPI","package":"tenable-jira-cloud","fixed_in":["1.1.21","1.1.22"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"tenable-jira-cloud","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.21"}]}]},{"source":"osv","ecosystem":"PyPI","package":"tenable-jira-cloud","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.21"}]}],"versions":["1.0.0","1.1.0","1.1.1","1.1.10","1.1.11","1.1.12","1.1.13","1.1.14","1.1.15","1.1.16","1.1.17","1.1.18","1.1.19","1.1.2","1.1.20","1.1.3","1.1.4","1.1.5","1.1.6","1.1.7","1.1.8","1.1.9"]},{"source":"osv","ecosystem":"PyPI","package":"tenable-jira-cloud","ranges":[{"type":"GIT","events":[{"introduced":"0"},{"fixed":"f8c2095fd529e664e7fa25403a0a4a85bb3907d0"}]},{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.22"}]}],"versions":["1.0.0","1.1.0","1.1.1","1.1.2","1.1.3","1.1.4","1.1.5","1.1.6","1.1.7","1.1.8","1.1.9","1.1.10","1.1.11","1.1.12","1.1.13","1.1.14","1.1.15","1.1.16","1.1.17","1.1.18","1.1.19","1.1.20"]}],"products":[{"vendor":"tenable","product":"integration-jira-cloud"},{"vendor":"tenable","product":"jira_cloud"}],"references":[{"url":"https://github.com/tenable/integration-jira-cloud/security/advisories/GHSA-8278-88vv-x98r","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/tenable/integration-jira-cloud/commit/f8c2095fd529e664e7fa25403a0a4a85bb3907d0","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://pypi.org/project/tenable-jira-cloud/","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","package"]},{"url":"https://pyyaml.docsforge.com/master/documentation/#loading-yaml","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21371","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/tenable-jira-cloud/PYSEC-2021-60.yaml","tags":["web"]},{"url":"https://pypi.org/project/tenable-jira-cloud","tags":["web"]},{"url":"https://github.com/advisories/GHSA-8278-88vv-x98r"},{"url":"https://github.com/tenable/integration-jira-cloud","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-21371","title":"Execution of untrusted code through config file","description":"Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as \"tenable-jira-cloud\". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().","status":"published","published":"2021-03-10T21:50:14Z","modified":"2024-08-03T18:09:15.792Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:33:00.488332Z"}],"euvd":[{"id":"EUVD-2021-0252","description":"Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as \"tenable-jira-cloud\". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().","status":"published","published":"2021-03-10T21:50:14Z","modified":"2024-08-03T18:09:15Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T03:25:06.913643Z"}],"ghsa":[{"id":"GHSA-8278-88vv-x98r","title":"Execution of untrusted code through config file","description":"### Impact\nIt is possible to run arbitrary commands through the yaml.load() method.  This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file.\n\n### Workarounds\nManually adjust yaml.load() to yaml.safe_load()\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [tenable/integration-jira-cloud](https://github.com/tenable/integration-jira-cloud/issues)\n* Email us at [vulnreport@tenable.com](mailto:vulnreport@tenable.com)","status":"published","published":"2021-03-10T21:51:17Z","modified":"2024-10-27T15:38:09Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:38:13.90937Z"}],"nvd":[{"id":"CVE-2021-21371","description":"Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as \"tenable-jira-cloud\". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().","status":"published","published":"2021-03-10T22:15:12.307Z","modified":"2026-06-17T03:35:24.683Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:06:50.805771Z"}],"osv":[{"id":"CVE-2021-21371","description":"Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as \"tenable-jira-cloud\". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().","status":"published","published":"2021-03-10T22:15:12.307Z","modified":"2026-10-20T10:54:28.770326624Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"GHSA-8278-88vv-x98r","title":"Execution of untrusted code through config file","description":"### Impact\nIt is possible to run arbitrary commands through the yaml.load() method.  This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file.\n\n### Workarounds\nManually adjust yaml.load() to yaml.safe_load()\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [tenable/integration-jira-cloud](https://github.com/tenable/integration-jira-cloud/issues)\n* Email us at [vulnreport@tenable.com](mailto:vulnreport@tenable.com)","status":"published","published":"2021-03-10T21:51:17Z","modified":"2026-09-10T03:49:26.585735497Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:41.732368Z"},{"id":"PYSEC-2021-60","description":"Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as \"tenable-jira-cloud\". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().","status":"published","published":"2021-03-10T22:15:00Z","modified":"2023-11-08T04:04:43.605874Z","updated_at":"2026-11-02T15:52:53.119977Z"}]}}