CVE-2022-42038: The d8s-ip-addresses package for Python, as distributed on PyPI, included a potential code-execution backdoor

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-42038 is a critical-severity flaw (CVSS 9.8) affecting d8s-ip-addresses. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The d8s-ip-addresses package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-csv package. The affected version is 0.1.0.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-434
Published	2022-10-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: democritus

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-10-11 22:15 UTCPublished CVE record published
2026-06-17 05:04 UTCUpdated Record last modified

democritus d8s-ip-addresses DOWNGRADE

Affected: 0.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1.0

1. Check installed version

apt-cache policy d8s-ip-addresses || rpm -q d8s-ip-addresses || d8s-ip-addresses --version

2. No fixed release: DOWNGRADE to a release before 0.1.0 (Debian / Ubuntu)

apt-cache madison d8s-ip-addresses sudo apt install d8s-ip-addresses=<VERSION_BEFORE_0.1.0> sudo apt-mark hold d8s-ip-addresses

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list d8s-ip-addresses sudo dnf downgrade d8s-ip-addresses-<VERSION_BEFORE_0.1.0> sudo dnf versionlock add d8s-ip-addresses

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-42038?

d8s-ip-addresses: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-42038 being exploited?

CVE-2022-42038 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-42038 affect?

CVE-2022-42038 affects d8s-ip-addresses. Severity is critical (CVSS 9.8). The d8s-ip-addresses package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-csv package. The affected version is 0.1.0.

How urgent is CVE-2022-42038?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities · PyPI packages vulnerabilities

Related CVEs

CVE-2022-40429 CRITICAL 9.8 DOWNGRADE The d8s-ip-addresses for python, as distributed on PyPI, included a potential code-execution backdoor inserted

References

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