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WebKitGTK Vulnerabilities Allow Code Execution, DoS, Info Disclosure

Favicon for wid.cert-bund.de CERT-Bund Security Advisories
Published March 18th, 2026
Detected March 19th, 2026
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Summary

CERT-Bund has issued a security advisory (WID-SEC-2026-0782) regarding multiple vulnerabilities in WebKitGTK, a web browser engine used across various operating systems. The vulnerabilities, with a CVSS Base Score of 8.8, can allow remote attackers to execute arbitrary code, cause denial-of-service conditions, or disclose sensitive information.

What changed

This advisory from CERT-Bund details critical vulnerabilities affecting open-source WebKitGTK versions prior to 2.44.0, 2.50.0, 2.50.2, 2.50.5, 2.50.6, and 2.52.0. The identified weaknesses, rated with a high CVSS Base Score of 8.8, enable remote, anonymous attackers to achieve code execution, trigger denial-of-service (DoS) states, or exfiltrate confidential information. The advisory notes that mitigation is available, and provides links to CVE information and version history.

Organizations utilizing WebKitGTK in their systems, particularly on UNIX-based operating systems or as part of other applications (like Safari on macOS/iOS), should prioritize updating to patched versions. Failure to do so could expose systems to significant security risks, including unauthorized code execution and data breaches. While no specific compliance deadline is stated, immediate patching is strongly recommended to mitigate these high-severity threats.

What to do next

  1. Update WebKitGTK to patched versions (>= 2.44.0, >= 2.50.0, etc.)
  2. Assess systems for potential exploitation of identified vulnerabilities
  3. Implement mitigation strategies as recommended by CERT-Bund

Source document (simplified)

[WID-SEC-2026-0782] WebKitGTK: Mehrere Schwachstellen CVSS Base Score 8.8 (hoch) CVSS Temporal Score 7.7 (hoch) Remoteangriff ja Datum 18.03.2026 Stand 19.03.2026 Mitigation ja

Betroffene Systeme

Betriebssystem

  • Sonstiges
  • UNIX

Produktbeschreibung

WebKitGTK ist ein Webbrowser. Dieser nutzt die WebKit-Engine, die auch von Safari und vielen anderen Apps auf macOS, iOS und Linux verwendet wird.

Produkte

18.03.2026
- Open Source WebKitGTK <2.44.0

  • Open Source WebKitGTK <2.50.0

  • Open Source WebKitGTK <2.50.5

  • Open Source WebKitGTK <2.50.2

  • Open Source WebKitGTK <2.50.6

  • Open Source WebKitGTK <2.52.0

Angriff

Angriff

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in WebKitGTK ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand auszulösen oder vertrauliche Informationen offenzulegen. CVE Informationen Versionshistorie Feedback zum Advisory geben

Named provisions

Betroffene Systeme Angriff

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
CERT-Bund
Published
March 18th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Substantive
Document ID
WID-SEC-2026-0782

Who this affects

Applies to
Technology companies
Industry sector
5112 Software & Technology
Activity scope
Software Vulnerability Management System Patching
Geographic scope
Germany DE

Taxonomy

Primary area
Cybersecurity
Operational domain
IT Security
Topics
Software Vulnerabilities Information Disclosure Denial of Service

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