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9.6

Webkit2gtk3 may crash browsers or reveal visited links

published 1 month ago
Summary

The Webkit2gtk3 component used on Rocky Linux can be triggered by specially crafted web pages to cause crashes, display fake interfaces, or unintentionally disclose whether a user has visited a particular link. This could affect the stability of applications that display web content and expose browsing habits. Update to the latest package from your Linux distribution to apply the fix and protect against these risks.

What to do
  • Update rocky webkit2gtk3 to version 0:2.54.0-1.el9_8.
Affected software
Ecosystem VendorProductAffected versions
Rocky Linux:9 rocky webkit2gtk3 < 0:2.54.0-1.el9_8
Fix: upgrade to 0:2.54.0-1.el9_8
Original advisory text
Important: webkit2gtk3 security update
WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

Security Fix(es):

* chromium-browser: Skia in Google Chrome: Sandbox escape via crafted HTML page (CVE-2026-19154)

* chromium-browser: skia: Skia: Sandbox escape via out-of-bounds write in Chromium (CVE-2026-19173)

* chromium-browser: Skia in Google Chrome: Cross-origin data leakage via uninitialized use (CVE-2026-19161)

* chromium-browser: Skia: Arbitrary code execution via crafted HTML page (CVE-2026-19176)

* chromium-browser: Chromium: Information leak allows web origin policy bypass (CVE-2026-76041)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-28984)

* webkitgtk: Visiting a website may lead to an app denial-of-service (CVE-2026-43804)

* webkitgtk: Websites may know if the user has visited a given link (CVE-2026-64713)

* webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy (CVE-2026-64728)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected process termination (CVE-2026-64787)

* webkitgtk: Visiting a website that frames malicious content may lead to UI spoofing (CVE-2026-64730)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-64757)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-64783)

* webkitgtk: use-after-free of JSCValue function parameters (CVE-2026-78376)

* chromium-browser: Skia: Information disclosure via out-of-bounds read in crafted media file (CVE-2026-79020)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-43795)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2026-64715)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-64718)

* webkitgtk: Visiting a maliciously crafted website may leak sensitive data (CVE-2026-64778)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-64779)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-64780)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-64782)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-64784)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65331)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65332)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65334)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65335)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65336)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65337)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65338)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65340)

* webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2026-65341)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2026-65351)

* webkitgtk: Validate the full FeatureList array once in OpenTypeVerticalData findFeature (CVE-2026-83596)

* chromium-browser: skia: chromium-browser: Information leak in Skia (CVE-2026-84359)

* webkitgtk: Processing maliciously crafted web content may lead to an unexpected process termination (CVE-2026-84635)

* webkitgtk: Processing maliciously crafted web content may disclose sensitive user information (CVE-2026-64753)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
9.6 Critical
Timeline
Published22 Sep 2026
Updated22 Sep 2026
First seen22 Sep 2026
Sources
RLSA-2026:69098 · OSV
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