What is CVE-2022-28470?

CVE-2022-28470 is a critical-severity vulnerability in Python Pypi. CVSS score: 9.8/10. Published 2022-05-08.

How severe is CVE-2022-28470?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Python Pypi

CVE-2022-28470

marcador package in PyPI 0.1 through 0.13 included a code-execution backdoor.

Published 2022-05-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.023 · change: +0.001

Affected products

Python Pypi

References

pypi.org/project/marcador/ (Product)
pypi.doubanio.com/simple/request (Third Party Advisory)
github.com/joajfreitas/marcador/issues/5 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-28470?: CVE-2022-28470 is a critical-severity vulnerability in Python Pypi. CVSS score: 9.8/10. Published 2022-05-08.
How severe is CVE-2022-28470?: Critical severity. CVSS v3 base score is 9.8 out of 10.