CVE-2026-55555: Dompdf: File existence oracle via font-face stylesheet declaration

low Affects dompdf/dompdf. Feed 2026.10.29.4, updated 2026-10-29; published 2026-07-22.

Dompdf: File existence oracle via font-face stylesheet declaration

Package: dompdf/dompdf Composer
Affected versions: <3.1.6
Fixed in: 3.1.6
Severity: low
Exploitation: not on CISA KEV · EPSS 1% (43.3th percentile)
Published: 2026-07-22
Source: osv.dev

References

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden deps composer.lock

# or, without Composer
pipx install phpwarden   &&   phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs How findings are ranked

Related advisories

CVE-2022-28368 critical Remote code injection in dompdf/dompdf same package: dompdf/dompdf
CVE-2014-2383 medium DOMPDF Arbitrary File Read same package: dompdf/dompdf
CVE-2022-41343 high Dompdf allows remote file inclusion because URI validation failure does not halt font regi same package: dompdf/dompdf
CVE-2010-4879 high DOMPDF Remote File Inclusion Vulnerability same package: dompdf/dompdf
CVE-2014-5013 high DOMPDF Remote Code Execution same package: dompdf/dompdf
CVE-2023-23924 critical Dompdf vulnerable to URI validation failure on SVG parsing same package: dompdf/dompdf