{"id":"CVE-2020-27619","title":"In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.","summary":"In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"python","product":"python","affected":["python >= 3.0.0, < 3.6.13","python >= 3.7.0, < 3.7.10","python >= 3.8.0, < 3.8.7","python >= 3.9.0, < 3.9.1","fedora = 33","fedora = 34","communications_cloud_native_core_network_function_cloud_native_environment = 22.2.0"],"patched":["python 3.9.1"],"published":"2020-10-22","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:17:27.533","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-27619","references":[{"url":"https://bugs.python.org/issue41944","label":"cve@mitre.org"},{"url":"https://github.com/python/cpython/commit/2ef5caa58febc8968e670e39e3d37cf8eef3cab8","label":"cve@mitre.org"},{"url":"https://github.com/python/cpython/commit/43e523103886af66d6c27cd72431b5d9d14cd2a9","label":"cve@mitre.org"},{"url":"https://github.com/python/cpython/commit/6c6c256df3636ff6f6136820afaefa5a10a3ac33","label":"cve@mitre.org"},{"url":"https://github.com/python/cpython/commit/b664a1df4ee71d3760ab937653b10997081b1794","label":"cve@mitre.org"},{"url":"https://github.com/python/cpython/commit/e912e945f2960029d039d3390ea08835ad39374b","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/","label":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/202402-04","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20201123-0004/","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","label":"cve@mitre.org"},{"url":"https://bugs.python.org/issue41944","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/python/cpython/commit/2ef5caa58febc8968e670e39e3d37cf8eef3cab8","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/python/cpython/commit/43e523103886af66d6c27cd72431b5d9d14cd2a9","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/python/cpython/commit/6c6c256df3636ff6f6136820afaefa5a10a3ac33","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/python/cpython/commit/b664a1df4ee71d3760ab937653b10997081b1794","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/python/cpython/commit/e912e945f2960029d039d3390ea08835ad39374b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202402-04","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20201123-0004/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.08334,"epssPercentile":0.94817,"ingestedAt":"2026-10-08T22:11:53.722Z","slug":"CVE-2020-27619","body":"## Overview\n\nIn Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.\n\n## Affected\n\n- `python >= 3.0.0, < 3.6.13`\n- `python >= 3.7.0, < 3.7.10`\n- `python >= 3.8.0, < 3.8.7`\n- `python >= 3.9.0, < 3.9.1`\n- `fedora = 33`\n- `fedora = 34`\n- `communications_cloud_native_core_network_function_cloud_native_environment = 22.2.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `python 3.9.1`","depth":"midnight","depthScore":56,"depthScoreParts":{"impact":53.9,"likelihood":1.7,"exploitation":0,"ransomware":0},"changes":[]}