CVE-2026-22870: GuardDog is a CLI tool to identify malicious PyPI packages

This week

HIGH 7.5REMOTEUPGRADE

CVE-2026-22870 is a high-severity flaw (CVSS 7.5) affecting guarddog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GuardDog is a CLI tool to identify malicious PyPI packages. Prior to 2.7.1, GuardDog's safe_extract() function does not validate decompressed file sizes when extracting ZIP archives (wheels, eggs), allowing attackers to cause denial of service through zip bombs. A malicious package can consume gigabytes of disk space from a few megabytes of compressed data. This vulnerability is fixed in 2.7.1.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-409
Published	2026-01-13
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: datadoghq

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

Am I affected?

Timeline

2026-01-13 21:15 UTCPublished CVE record published
2026-06-17 10:20 UTCUpdated Record last modified

datadoghq guarddog UPGRADE

Affected: < 2.7.1

Fixed in: 2.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show guarddog

2. UPGRADE to 2.7.1

pip install --upgrade "guarddog>=2.7.1"

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-2026-22870?

guarddog: upgrade to 2.7.1. Exact commands for each OS are on this page.

Is CVE-2026-22870 being exploited?

CVE-2026-22870 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-2026-22870 affect?

CVE-2026-22870 affects guarddog. Severity is high (CVSS 7.5). GuardDog is a CLI tool to identify malicious PyPI packages. Prior to 2.7.1, GuardDog's safe_extract() function does not validate decompressed file sizes when extracting ZIP archives (wheels, eggs), allowing attackers to cause denial of serv

How urgent is CVE-2026-22870?

Priority 47/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PyPI packages vulnerabilities

Related CVEs

CVE-2026-22871 CRITICAL 9.8 UPGRADE GuardDog is a CLI tool to identify malicious PyPI packages

References

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