Critical 9.8Published Oct 21, 2020

CVE-2020-27619In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.

Updated under an hour ago (Oct 26, 2026, 11:00 PM ET)

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Exploited in the last 30 days

In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.

CVSS: 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mitre
NVD analysis: Modified
Record last updated: Oct 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

python python python:python	from 3.0.0 before 3.6.13; from 3.7.0 before 3.7.10; from 3.8.0 before 3.8.7; from 3.9.0 before 3.9.1	NVD
fedoraproject fedora fedoraproject:fedora	33; 34	NVD
oracle communications_cloud_native_core_network_function_cloud_native_environment oracle:communications_cloud_native_core_network_function_cloud_native_environment	22.2.0	NVD

References

References

https://bugs.python.org/issue41944
https://github.com/python/cpython/commit/2ef5caa58febc8968e670e39e3d37cf8eef3cab8
https://github.com/python/cpython/commit/b664a1df4ee71d3760ab937653b10997081b1794
https://github.com/python/cpython/commit/6c6c256df3636ff6f6136820afaefa5a10a3ac33
https://github.com/python/cpython/commit/43e523103886af66d6c27cd72431b5d9d14cd2a9
https://github.com/python/cpython/commit/e912e945f2960029d039d3390ea08835ad39374b
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E	mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/	vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/	vendor-advisory
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	mailing-list
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.