The keep for python, as distributed on PyPI, included a code-execution backdoor inserted by a third party.

published 2022-06-08 4 y ago modified 2026-06-17 4 mo ago also PYSEC-2022-43056 , EUVD-2022-0133

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.6%; EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

The keep for python, as distributed on PyPI, included a code-execution backdoor inserted by a third party. The current version, without this backdoor, is 1.2.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-30877 updated 2026-03-27 cvss 8.4

keep: malicious backdoor

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.63% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/OrkoHunter/keep/issues/85 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	keep	all versions	no fix listed

References

github.com /OrkoHunter/keep/issues/85
exploit, third-party-advisory, report
pypi.doubanio.com /simple/request
vendor-advisory, advisory
pypi.org /project/keep
product, vendor-advisory, advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary