What is CVE-2026-22871?

CVE-2026-22871 is a critical-severity vulnerability in Datadog Guarddog, classified under Path Traversal. CVSS score: 9.8/10. Published 2026-01-13.

How severe is CVE-2026-22871?

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

Path Traversal in Datadog Guarddog

CVE-2026-22871

GuardDog is a CLI tool to identify malicious PyPI packages. Prior to 2.7.1, there is a path traversal vulnerability exists in GuardDog's safe_extract() function that allows malicious PyPI packages to write arbitrary files outside the intended extraction directory, leading to Arbitrary File Overwrite and Remote Code Execution on systems running GuardDog. This vulnerability is fixed in 2.7.1.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-01-13 · 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: 0.011 (63.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.001

Affected products

Datadog Guarddog — versions < 2.7.1
Datadoghq Guarddog

Weakness classification (CWE)

CWE-22 — Path Traversal

References

github.com/DataDog/guarddog/security/advisories/GHSA-xg9w-vg3g-6m68 (Third Party Advisory)
github.com/DataDog/guarddog/commit/9aa6a725b2c71d537d3c18d1c15621395ebb879c (Patch)

Frequently asked questions

What is CVE-2026-22871?: CVE-2026-22871 is a critical-severity vulnerability in Datadog Guarddog, classified under Path Traversal. CVSS score: 9.8/10. Published 2026-01-13.
How severe is CVE-2026-22871?: Critical severity. CVSS v3 base score is 9.8 out of 10.