WebKitGTK and WPE WebKit Security Advisory WSA-2025-0006

• Date Reported: September 23, 2025

• Advisory ID: WSA-2025-0006

• CVE identifiers: CVE-2025-43272, CVE-2025-43342, CVE-2025-43356, CVE-2025-43368

Several vulnerabilities were discovered in WebKitGTK and WPE WebKit.

• CVE-2025-43272
  • Versions affected: WebKitGTK and WPE WebKit before 2.48.7.
  • Credit to Big Bear.
  • Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash. Description: The issue was addressed with improved memory handling.
  • WebKit Bugzilla: 294550
• CVE-2025-43342
  • Versions affected: WebKitGTK and WPE WebKit before 2.48.7.
  • Credit to an anonymous researcher.
  • Impact: Processing maliciously crafted web content may lead to an unexpected process crash. Description: A correctness issue was addressed with improved checks.
  • WebKit Bugzilla: 296042
• CVE-2025-43356
  • Versions affected: WebKitGTK and WPE WebKit before 2.48.7.
  • Credit to Jaydev Ahire.
  • Impact: A website may be able to access sensor information without user consent. Description: The issue was addressed with improved handling of caches.
  • WebKit Bugzilla: 296153
• CVE-2025-43368
  • Versions affected: WebKitGTK and WPE WebKit before 2.48.7.
  • Credit to Pawel Wylecial of REDTEAM.PL working with Trend Micro Zero Day Initiative.
  • Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash. Description: A use-after-free issue was addressed with improved memory management.
  • WebKit Bugzilla: 296276

We recommend updating to the latest stable versions of WebKitGTK and WPE WebKit. It is the best way to ensure that you are running safe versions of WebKit. Please check our websites for information about the latest stable releases.

Further information about WebKitGTK and WPE WebKit security advisories can be found at: webkitgtk.org/security.html or wpewebkit.org/security.