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SCA: security update for dompdf/dompdf (GHSA-cx96-42px-69fm)

medium Tenable Self-Hosted Container Security Plugin ID 445205

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-56722)

Solution

Update the dompdf/dompdf library and its related packages to version 3.1.6 or later.

See Also

https://github.com/advisories/GHSA-cx96-42px-69fm

Plugin Details

Severity: Medium

ID: 445205

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 7/23/2026

Updated: 8/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2026-56722

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 2.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/22/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-56722