Astra Linux – Vulnerability in Firefox, Thunderbird

A use-after-free occurred in FontFaceSet, resulting in a potentially exploitable crash. This vulnerability has been fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12...

CVE-2026-47666 Penpot: Stored XSS via custom font family name injected into a @font-face style rule

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Becaus...

CVE-2026-47666 Penpot: Stored XSS via custom font family name injected into a @font-face style rule

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Becaus...

Astra Linux – Vulnerability in WebKit2GTK

A use-after-free vulnerability exists in the SVG implementation in Blink, as used in Google Chrome before version 35.0.1916.114. This vulnerability allows remote attackers to cause a denial of service or potentially cause unspecified other impacts through vectors that trigger the removal of an...

CVE-2026-55555

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

DEBIAN-CVE-2026-55555

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

UBUNTU-CVE-2026-55555

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

CVE-2026-55555

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

EUVD-2026-49997

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

CVE-2026-55555

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

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

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

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

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

CVE-2026-55555

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

CVE-2026-55555

Summary (concrete details from provided docs): Dompdf (PHP HTML-to-PDF converter) versions 3.15 and earlier are vulnerable to a File Existence Oracle via the CSS @font-face directive. An attacker can supply HTML that references local files with the file:// protocol to cause memory exhaustion, exp...

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

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP...

File Existence Oracle

dompdf/dompdf is vulnerable to File Existence Oracle. The vulnerability is due to inconsistent handling of the CSS @font-face directive when processing local file:// resources, which allows an attacker to repeatedly reference local files and observe differences in memory exhaustion behavior to...

GHSA-7X2P-4JVH-6384 Dompdf: File existence oracle via font-face stylesheet declaration

Description Dompdf is vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP memory exhaustion. The critical point of this flaw ...

Dompdf: File existence oracle via font-face stylesheet declaration

Description Dompdf is vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP memory exhaustion. The critical point of this flaw ...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure in the processing of CSS @font-face directives referencing local files via the file:// protocol. An attacker can determine the existence of sensitive files on the server by submitting crafted HTML and analyzing the...

RLSA-2025:10073 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: Content-Disposition header ignored when a file is included in an embed or object tag CVE-2025-6430 firefox: Use-after-free in FontFaceSet CVE-2025-6424 firefox:...