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...

libXfont2: PCF Font Parsing Heap Buffer Overflow

A flaw was found in libXfont2. A specially crafted PCF Portable Compiled Format font file, when processed by libXfont2, can lead to a buffer overflow. This occurs because the font parsing process does not properly validate the size of a bitmap buffer against the glyph metrics provided in the...

Important: Red Hat Security Advisory: libXfont2 security update

An update for libXfont2 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fro...

libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow

A flaw was found in libXfont2. In the BitmapScaleBitmaps function, an integer overflow can occur when calculating the memory needed for font glyphs. This overflow leads to a heap buffer overflow, where a smaller-than-required memory buffer is allocated. A local attacker can exploit this by loadin...

CVE-2026-15393

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute in all versions up to, and including, 2.2.11 due to insufficient input sanitization and...

CVE-2026-15393

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE plugin for WordPress (WordPress plugin with 600+ patterns, 58 blocks) is vulnerable to Stored Cross-Site Scripting via the postMeta.font.size Block Attribute in all versions up to and including 2.2.11. The root cause is insufficient input ...

CVE-2026-15393

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute in all versions up to, and including, 2.2.11 due to insufficient input sanitization and...

CVE-2026-15393 Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute in all versions up to, and including, 2.2.11 due to insufficient input sanitization and...

CVE-2026-15393 Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute in all versions up to, and including, 2.2.11 due to insufficient input sanitization and...

EUVD-2026-49790

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute in all versions up to, and including, 2.2.11 due to insufficient input sanitization and...

SUSE-SU-2026:3338-1 Security update for webkit2gtk3

This update for webkit2gtk3 fixes the following issues: - CVE-2024-4367: missing type check when handling fonts in PDF.js can allow arbitrary JavaScript execution bsc1271638. - CVE-2026-39872: maliciously crafted web content can lead to an unexpected process crash bsc1271638. - CVE-2026-43663:...

CVE-2026-56003

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server...

CVE-2026-55555: Observable Discrepancy

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...

PT-2026-65457

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute in all versions up to, and including, 2.2.11 due to insufficient input sanitization and...

ALSA-2026:47079 Important: libXfont2 security update

X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001 libXfont2: PCF Font Parsing Heap Buffer Overflow CVE-2026-56002 For more details about the security issues, including the impact, a CVSS score, acknowledgments, a...

ALSA-2026:47103 Important: libXfont2 security update

X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001 libXfont2: PCF Font Parsing Heap Buffer Overflow CVE-2026-56002 libXfont2: computeProps Property Buffer Heap Buffer Overflow CVE-2026-56003 For more details about...

TencentOS Server 3: python-pillow (TSSA-2026:0769)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0769 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

RHEL 8 : libXfont2 (RHSA-2026:47103)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:47103 advisory. X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001...

Important: libXfont2 security update

X.Org X11 libXfont2 runtime library Security Fixes: libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56001 libXfont2: PCF Font Parsing Heap Buffer Overflow CVE-2026-56002 For more details about the security issues, including the impact, a CVSS score, acknowledgments, a...