RHSA-2026:58550: Important: webkit2gtk3 security update

Published Aug 24, 2026
·
Updated

WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.Security Fix(es): Mozilla: Arbitrary JavaScript execution in PDF.js (CVE-2024-4367) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-39872) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43663) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43676) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43699) webkitgtk: webkitgtk: A malicious website may process restricted web content outside the sandbox (CVE-2026-43701) webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption (CVE-2026-43705) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43707) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43712) webkitgtk: webkitgtk: Visiting a website may leak sensitive data (CVE-2026-43713) webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption (CVE-2026-43715) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43716) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43720) webkitgtk: webkitgtk: A malicious website may silently hijack clipboard data (CVE-2026-43721) webkitgtk: webkitgtk: A malicious website may process restricted web content outside the sandbox (CVE-2026-43725) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43726) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43727) webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption (CVE-2026-43731) webkitgtk: webkitgtk: Maliciously crafted web content may disclose sensitive user information (CVE-2026-43732) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43734) webkitgtk: webkitgtk: Maliciously crafted web content may disclose process memory (CVE-2026-43740) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43742) webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43745) webkitgtk: Processing maliciously crafted web content may lead to an unexpected process termination (CVE-2026-64787) 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.

Affected Software

36 affected componentsFixes available
redhat/webkit2gtk3<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-debugsource<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-debugsource<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-devel<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-devel<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-devel-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-devel-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-devel<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-devel<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-devel-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-devel-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-debugsource<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-devel<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-devel-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-devel<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3-jsc-devel-debuginfo<2.52.5-1.el9_2
2.52.5-1.el9_2
redhat/webkit2gtk3<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-debuginfo<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-debugsource<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-devel<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-devel-debuginfo<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-jsc<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-jsc-debuginfo<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-jsc-devel<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa
redhat/webkit2gtk3-jsc-devel-debuginfo<2.52.5-1.el9_2.aa
2.52.5-1.el9_2.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/webkit2gtk3 to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  2. Upgrade

    Upgrade redhat/webkit2gtk3-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  3. Upgrade

    Upgrade redhat/webkit2gtk3-debugsource to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  4. Upgrade

    Upgrade redhat/webkit2gtk3-devel to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  5. Upgrade

    Upgrade redhat/webkit2gtk3-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  6. Upgrade

    Upgrade redhat/webkit2gtk3-jsc to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  7. Upgrade

    Upgrade redhat/webkit2gtk3-jsc-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  8. Upgrade

    Upgrade redhat/webkit2gtk3-jsc-devel to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  9. Upgrade

    Upgrade redhat/webkit2gtk3-jsc-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2
  10. Upgrade

    Upgrade redhat/webkit2gtk3 to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  11. Upgrade

    Upgrade redhat/webkit2gtk3-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  12. Upgrade

    Upgrade redhat/webkit2gtk3-debugsource to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  13. Upgrade

    Upgrade redhat/webkit2gtk3-devel to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  14. Upgrade

    Upgrade redhat/webkit2gtk3-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  15. Upgrade

    Upgrade redhat/webkit2gtk3-jsc to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  16. Upgrade

    Upgrade redhat/webkit2gtk3-jsc-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  17. Upgrade

    Upgrade redhat/webkit2gtk3-jsc-devel to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa
  18. Upgrade

    Upgrade redhat/webkit2gtk3-jsc-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.52.5-1.el9_2.aa

Event History

Aug 24, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

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