Resource exhaustion in Dompdf - CVE-2026-59941
Published: July 20, 2026
Vulnerability identifier: #VU138586
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-59941
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: dompdf
Affected software:
Dompdf
Dompdf
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in the BMP image processing component when parsing BMP files with declared dimensions. A remote attacker can supply a specially crafted BMP file to cause a denial of service.
How to mitigate CVE-2026-59941
Install security update from vendor's website.