CVE-2026-56722 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-56722MEDIUM

Dompdf: Local file read due to improper file path validation in SVG images encoded as data-URI

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   P   N   N   L   N   N    6.3   .0045   37.5     —

AFFECTED
  Product  Versions   Fixed
  dompdf   < 3.1.6 –  —

TIMELINE
  Jun 22  Reserved by GitHub_M
  Jul 28  EXPLOIT PUBLISHED — CVE-2026-56722 (dompdf). Public exploit reference added.
  Jul 28  Published (CNA: GitHub_M)
  Aug 4   EXPLOIT PUBLISHED — CVE-2026-56722 (dompdf). Public exploit reference added.

CWE-20 · CNA: GitHub_M · CVSS v4.0 · 4 references · NVD status: Analyzed

Description

Dompdf is an HTML to PDF converter for PHP. In versions 3.15 and prior, aAn attacker who controls the HTML input can bypass this restriction by embedding a target file path inside an SVG image delivered through a data: URI, because dompdf processes the SVG twice and the second pass does not enforce the same protections as the first. When rendering, dompdf hands the SVG to the separate php-svg-lib library with external references forced on, and that library has no knowledge of the chroot directory, blocks only the phar:// scheme, and ultimately reads the referenced file with no path or protocol validation. This lets an external, unauthenticated attacker read arbitrary image files from the server's file system in the default configuration. This issue has been fixed in version 3.16.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
June 22, 2026	Reserved	Reserved by GitHub_M
July 28, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-56722 (dompdf). Public exploit reference added.
July 28, 2026	Published	Published (CNA: GitHub_M)
August 4, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-56722 (dompdf). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
dompdf	dompdf	—	< 3.1.6	—

Weaknesses

CWE-20

References (4)

https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0 [Patch]
https://github.com/dompdf/dompdf/commit/bf7b02f642e26007dedc5a22b3d6e15f9931120a [Patch]
https://github.com/dompdf/dompdf/releases/tag/v3.1.6 [Release Notes]
https://github.com/dompdf/dompdf/security/advisories/GHSA-cx96-42px-69fm [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-56722 at cve.org

Vendors: dompdf

Weaknesses: CWE-20

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-56722 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.