p PatchFirst

CVE-2026-20643

CVE-2026-20643

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may bypass Same Origin Policy.

CVSS 5.4 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • safari

    Versions
    • ≥ 0, < 26.4: Affected (custom)

    Update to 26.4

  • ios and ipados

    Versions
    • ≥ 0, < 18.7.7: Affected (custom)
    • ≥ 0, < 26.3.1 (a): Affected (custom)
    • ≥ 0, < 26.4: Affected (custom)

    Update to 18.7.7

  • macos

    Versions
    • ≥ 0, < 26.3.1 (a): Affected (custom)
    • ≥ 0, < 26.3.2 (a): Affected (custom)
    • ≥ 0, < 26.4: Affected (custom)

    Update to 26.3.2 (a)

  • visionos

    Versions
    • ≥ 0, < 26.4: Affected (custom)

    Update to 26.4

  • webkit2gtk Debian:12

    Versions
    • 2.40.1-1
    • 2.40.2-1
    • 2.40.2-1~deb11u1
    • 2.40.2-1~deb12u1
    • 2.40.3-1
    • 2.40.3-2
    • 2.40.3-2~deb11u1
    • 2.40.3-2~deb11u2
    • 2.40.3-2~deb12u1
    • 2.40.3-2~deb12u2
    • 2.40.4-1
    • 2.40.5-1
    • 2.40.5-1~deb11u1
    • 2.40.5-1~deb12u1
    • 2.41.4-1
    • 2.41.5-1
    • 2.41.6-1
    • 2.41.90-1
    • 2.41.91-1
    • 2.41.91-2
    • 2.41.92-1
    • 2.42.0-1
    • 2.42.0-1~bpo12+1
    • 2.42.1-1
    • 2.42.1-1~bpo12+1
    • 2.42.1-1~deb11u1
    • 2.42.1-1~deb11u2
    • 2.42.1-1~deb12u1
    • 2.42.1-2
    • 2.42.2-1
    • 2.42.2-1~deb11u1
    • 2.42.2-1~deb12u1
    • 2.42.3-1
    • 2.42.3-1~deb11u1
    • 2.42.3-1~deb12u1
    • 2.42.4-1
    • 2.42.4-1~deb11u1
    • 2.42.4-1~deb12u1
    • 2.42.5-1
    • 2.42.5-1~deb11u1
    • 2.42.5-1~deb12u1
    • 2.42.5-2
    • 2.43.1-1
    • 2.43.2-1
    • 2.43.3-1
    • 2.43.4-1
    • 2.43.4-2
    • 2.44.0-1
    • 2.44.0-2
    • 2.44.1-1
    • 2.44.1-1~deb11u1
    • 2.44.1-1~deb12u1
    • 2.44.2-1
    • 2.44.2-1~deb11u1
    • 2.44.2-1~deb12u1
    • 2.44.3-1
    • 2.44.3-1~deb11u1
    • 2.44.3-1~deb12u1
    • 2.44.4-1
    • 2.45.1-1
    • 2.45.1-2
    • 2.45.2-1
    • 2.45.3-1
    • 2.45.4-1
    • 2.45.5-1
    • 2.45.6-1
    • 2.45.91-1
    • 2.45.92-1
    • 2.46.0-1
    • 2.46.0-2
    • 2.46.0-2~deb12u1
    • 2.46.1-1
    • 2.46.1-2
    • 2.46.1-2~bpo12+1
    • 2.46.2-1
    • 2.46.3-1
    • 2.46.3-1~deb11u1
    • 2.46.3-1~deb11u2
    • 2.46.3-1~deb12u1
    • 2.46.4-1
    • 2.46.4-1~deb11u1
    • 2.46.4-1~deb12u1
    • 2.46.5-1
    • 2.46.5-1+hurd.1
    • 2.46.5-1+hurd.2
    • 2.46.5-1~deb11u1
    • 2.46.5-1~deb12u1
    • 2.46.6-1
    • 2.46.6-1~deb11u1
    • 2.46.6-1~deb12u1
    • 2.47.1-1
    • 2.47.2-1
    • 2.47.3-1
    • 2.47.4-1
    • 2.47.90-1
    • 2.48.0-1
    • 2.48.0-1+alpha
    • 2.48.0-1+hurd.1
    • 2.48.0-1+hurd.2
    • 2.48.0-1~deb12u1
    • 2.48.1-1
    • 2.48.1-2
    • 2.48.1-2~deb12u1
    • 2.48.1-3
    • 2.48.2-1
    • 2.48.3-1
    • 2.48.3-1~deb11u1
    • 2.48.3-1~deb12u1
    • 2.48.5-1
    • 2.48.5-1~deb11u1
    • 2.48.5-1~deb12u1
    • 2.48.5-1~deb13u1
    • 2.48.6-1
    • 2.49.90-1
    • 2.50.0-1
    • 2.50.0-2
    • 2.50.1-1
    • 2.50.1-1~deb11u1
    • 2.50.1-1~deb12u1
    • 2.50.1-1~deb13u1
    • 2.50.2-1
    • 2.50.2-1~deb11u1
    • 2.50.2-1~deb12u1
    • 2.50.2-1~deb13u1
    • 2.50.3-1
    • 2.50.3-1+hurd.1
    • 2.50.3-1~deb11u1
    • 2.50.3-1~deb12u1
    • 2.50.3-1~deb13u1
    • 2.50.4-1
    • 2.50.4-1~deb11u1
    • 2.50.4-1~deb12u1
    • 2.50.4-1~deb13u1
    • 2.50.5-1
    • 2.50.6-1
    • 2.50.6-1~deb11u1
    • 2.50.6-1~deb12u1
    • 2.50.6-1~deb12u2
    • 2.50.6-1~deb13u1
    • 2.51.1-1
    • 2.51.2-1
    • 2.51.3-1
    • 2.51.4-1
    • 2.51.90-1
    • 2.51.91-1
    • 2.51.92-1
    • 2.51.93-1
    • 2.52.0-1
    • 2.52.1-1
    • 2.52.2-1
    • 2.52.2-2
    • 2.52.3-1
    • 2.52.3-2
    • 2.52.3-2~deb13u1
    • 2.52.4-1
    • 2.52.5-1
    • 2.52.5-1~deb13u1
    • 2.52.6-1
    • 2.52.6-1~deb13u1
    • 2.53.1-1
    • 2.53.2-1
    • 2.53.3-1
    • 2.53.4-1
    • 2.53.90-1
    • 2.53.91-1
    • 2.53.92-1
    • 2.54.0-1~exp1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • webkit2gtk Debian:13

    Versions
    • 2.48.3-1
    • 2.48.5-1
    • 2.48.5-1~deb11u1
    • 2.48.5-1~deb12u1
    • 2.48.5-1~deb13u1
    • 2.48.6-1
    • 2.49.90-1
    • 2.50.0-1
    • 2.50.0-2
    • 2.50.1-1
    • 2.50.1-1~deb11u1
    • 2.50.1-1~deb12u1
    • 2.50.1-1~deb13u1
    • 2.50.2-1
    • 2.50.2-1~deb11u1
    • 2.50.2-1~deb12u1
    • 2.50.2-1~deb13u1
    • 2.50.3-1
    • 2.50.3-1+hurd.1
    • 2.50.3-1~deb11u1
    • 2.50.3-1~deb12u1
    • 2.50.3-1~deb13u1
    • 2.50.4-1
    • 2.50.4-1~deb11u1
    • 2.50.4-1~deb12u1
    • 2.50.4-1~deb13u1
    • 2.50.5-1
    • 2.50.6-1
    • 2.50.6-1~deb11u1
    • 2.50.6-1~deb12u1
    • 2.50.6-1~deb12u2
    • 2.50.6-1~deb13u1
    • 2.51.1-1
    • 2.51.2-1
    • 2.51.3-1
    • 2.51.4-1
    • 2.51.90-1
    • 2.51.91-1
    • 2.51.92-1
    • 2.51.93-1
    • 2.52.0-1
    • 2.52.1-1
    • 2.52.2-1
    • 2.52.2-2
    • 2.52.3-1
    Affected ranges
    • ECOSYSTEM: < 2.52.3-2~deb13u1

    Update to 2.52.3-2~deb13u1

  • webkit2gtk Debian:14

    Versions
    • 2.48.3-1
    • 2.48.5-1
    • 2.48.5-1~deb11u1
    • 2.48.5-1~deb12u1
    • 2.48.5-1~deb13u1
    • 2.48.6-1
    • 2.49.90-1
    • 2.50.0-1
    • 2.50.0-2
    • 2.50.1-1
    • 2.50.1-1~deb11u1
    • 2.50.1-1~deb12u1
    • 2.50.1-1~deb13u1
    • 2.50.2-1
    • 2.50.2-1~deb11u1
    • 2.50.2-1~deb12u1
    • 2.50.2-1~deb13u1
    • 2.50.3-1
    • 2.50.3-1+hurd.1
    • 2.50.3-1~deb11u1
    • 2.50.3-1~deb12u1
    • 2.50.3-1~deb13u1
    • 2.50.4-1
    • 2.50.4-1~deb11u1
    • 2.50.4-1~deb12u1
    • 2.50.4-1~deb13u1
    • 2.50.5-1
    • 2.50.6-1
    • 2.50.6-1~deb11u1
    • 2.50.6-1~deb12u1
    • 2.50.6-1~deb12u2
    • 2.50.6-1~deb13u1
    • 2.51.1-1
    • 2.51.2-1
    • 2.51.3-1
    • 2.51.4-1
    • 2.51.90-1
    • 2.51.91-1
    • 2.51.92-1
    • 2.51.93-1
    • 2.52.0-1
    Affected ranges
    • ECOSYSTEM: < 2.52.1-1

    Update to 2.52.1-1

  • wpewebkit Debian:12

    Versions
    • 2.38.6-1
    • 2.39.91-1
    • 2.40.0-1
    • 2.40.1-1
    • 2.40.2-1
    • 2.40.2-2
    • 2.40.3-1
    • 2.40.4-1
    • 2.40.5-1
    • 2.42.0-1
    • 2.42.1-1
    • 2.42.2-1
    • 2.42.3-1
    • 2.42.4-1
    • 2.42.5-1
    • 2.42.5-1.1
    • 2.42.5-1.1~exp1
    • 2.42.5-1.2
    • 2.42.5-2~exp
    • 2.44.1-1
    • 2.44.2-1
    • 2.44.2-2
    • 2.44.3-1
    • 2.44.4-1
    • 2.46.1-1
    • 2.46.2-1
    • 2.46.3-1
    • 2.46.4-1
    • 2.46.5-1
    • 2.46.6-1
    • 2.48.0-1
    • 2.48.1-1
    • 2.48.1-2
    • 2.48.2-1
    • 2.48.3-1
    • 2.48.5-1
    • 2.48.6-1
    • 2.48.6-2
    • 2.50.0-1
    • 2.50.0-2
    • 2.50.1-1
    • 2.50.2-1
    • 2.50.3-1
    • 2.50.4-1
    • 2.50.5-1
    • 2.50.6-1
    • 2.52.0-1
    • 2.52.1-1
    • 2.52.2-1
    • 2.52.2-2
    • 2.52.3-1
    • 2.52.4-1
    • 2.52.5-1
    • 2.52.6-1
    • 2.54.0-1
    • 2.54.0-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wpewebkit Debian:13

    Versions
    • 2.48.3-1
    • 2.48.5-1
    • 2.48.6-1
    • 2.48.6-2
    • 2.50.0-1
    • 2.50.0-2
    • 2.50.1-1
    • 2.50.2-1
    • 2.50.3-1
    • 2.50.4-1
    • 2.50.5-1
    • 2.50.6-1
    • 2.52.0-1
    • 2.52.1-1
    • 2.52.2-1
    • 2.52.2-2
    • 2.52.3-1
    • 2.52.4-1
    • 2.52.5-1
    • 2.52.6-1
    • 2.54.0-1
    • 2.54.0-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wpewebkit Debian:14

    Versions
    • 2.48.3-1
    • 2.48.5-1
    • 2.48.6-1
    • 2.48.6-2
    • 2.50.0-1
    • 2.50.0-2
    • 2.50.1-1
    • 2.50.2-1
    • 2.50.3-1
    • 2.50.4-1
    • 2.50.5-1
    • 2.50.6-1
    • 2.52.0-1
    Affected ranges
    • ECOSYSTEM: < 2.52.1-1

    Update to 2.52.1-1

  • qtwebkit-opensource-src Ubuntu:16.04:LTS

    Versions
    • 5.4.2+dfsg-1ubuntu2.1
    • 5.5.1+dfsg-2ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • webkit2gtk Ubuntu:16.04:LTS

    Versions
    • 2.8.5+dfsg1-3
    • 2.10.3+dfsg1-1
    • 2.10.4+dfsg1-1
    • 2.10.5-1
    • 2.10.6-1
    • 2.10.6-1ubuntu1
    • 2.10.8-1ubuntu1
    • 2.10.9-1ubuntu1
    • 2.12.5-0ubuntu0.16.04.1
    • 2.14.2-0ubuntu0.16.04.1
    • 2.14.3-0ubuntu0.16.04.1
    • 2.14.5-0ubuntu0.16.04.1
    • 2.16.1-0ubuntu0.16.04.1
    • 2.16.1-0ubuntu0.16.04.2
    • 2.16.2-0ubuntu0.16.04.1
    • 2.16.3-0ubuntu0.16.04.1
    • 2.16.6-0ubuntu0.16.04.1
    • 2.18.0-0ubuntu0.16.04.2
    • 2.18.3-0ubuntu0.16.04.1
    • 2.18.4-0ubuntu0.16.04.1
    • 2.18.5-0ubuntu0.16.04.1
    • 2.18.6-0ubuntu0.16.04.1
    • 2.20.1-0ubuntu0.16.04.1
    • 2.20.2-0ubuntu0.16.04.1
    • 2.20.3-0ubuntu0.16.04.1
    • 2.20.5-0ubuntu0.16.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • qtwebkit-source Ubuntu:16.04:LTS

    Versions
    • 2.3.2-0ubuntu10
    • 2.3.2-0ubuntu11
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • webkitgtk Ubuntu:16.04:LTS

    Versions
    • 2.4.9-2ubuntu2
    • 2.4.10-0ubuntu1
    • 2.4.11-0ubuntu0.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • webkit2gtk Ubuntu:18.04:LTS

    Versions
    • 2.18.0-2
    • 2.18.0-2build1
    • 2.18.2-1
    • 2.18.3-1
    • 2.18.4-1
    • 2.18.6-1
    • 2.19.91-1ubuntu1
    • 2.19.92-1
    • 2.20.0-1
    • 2.20.0-2
    • 2.20.0-2ubuntu1
    • 2.20.1-1
    • 2.20.2-0ubuntu0.18.04.1
    • 2.20.3-0ubuntu0.18.04.1
    • 2.20.5-0ubuntu0.18.04.1
    • 2.22.2-0ubuntu0.18.04.1
    • 2.22.2-0ubuntu0.18.04.2
    • 2.22.4-0ubuntu0.18.04.1
    • 2.22.5-0ubuntu0.18.04.1
    • 2.22.6-0ubuntu0.18.04.1
    • 2.24.1-0ubuntu0.18.04.1
    • 2.24.2-0ubuntu0.18.04.1
    • 2.24.4-0ubuntu0.18.04.1
    • 2.26.1-0ubuntu0.18.04.1
    • 2.26.2-0ubuntu0.18.04.1
    • 2.26.3-0ubuntu0.18.04.1
    • 2.26.4-0ubuntu0.18.04.1
    • 2.28.0-0ubuntu0.18.04.3
    • 2.28.1-0ubuntu0.18.04.1
    • 2.28.2-0ubuntu0.18.04.1
    • 2.28.3-0ubuntu0.18.04.1
    • 2.28.4-0ubuntu0.18.04.1
    • 2.30.3-0ubuntu0.18.04.1
    • 2.30.5-0ubuntu0.18.04.1
    • 2.30.6-0ubuntu0.18.04.1
    • 2.32.0-0ubuntu0.18.04.1
    • 2.32.3-0ubuntu0.18.04.1
    • 2.32.4-0ubuntu0.18.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • qtwebkit-opensource-src Ubuntu:18.04:LTS

    Versions
    • 5.9.1+dfsg-5ubuntu1
    • 5.9.1+dfsg-5ubuntu3
    • 5.212.0~alpha2-5build2
    • 5.212.0~alpha2-5build4
    • 5.212.0~alpha2-7
    • 5.212.0~alpha2-7build2
    • 5.212.0~alpha2-7ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • qtwebkit-source Ubuntu:18.04:LTS

    Versions
    • 2.3.2-0ubuntu13
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • webkitgtk Ubuntu:18.04:LTS

    Versions
    • 2.4.11-3
    • 2.4.11-3ubuntu2
    • 2.4.11-3ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • webkit2gtk Ubuntu:20.04:LTS

    Versions
    • 2.26.1-3
    • 2.26.2-1
    • 2.26.3-1ubuntu2
    • 2.26.4-1ubuntu1
    • 2.28.0-1ubuntu2
    • 2.28.1-1
    • 2.28.2-0ubuntu0.20.04.1
    • 2.28.3-0ubuntu0.20.04.1
    • 2.28.4-0ubuntu0.20.04.1
    • 2.30.3-0ubuntu0.20.04.1
    • 2.30.5-0ubuntu0.20.04.1
    • 2.30.6-0ubuntu0.20.04.1
    • 2.32.0-0ubuntu0.20.04.1
    • 2.32.3-0ubuntu0.20.04.1
    • 2.32.4-0ubuntu0.20.04.1
    • 2.34.1-0ubuntu0.20.04.1
    • 2.34.3-0ubuntu0.20.04.1
    • 2.34.4-0ubuntu0.20.04.1
    • 2.34.6-0ubuntu0.20.04.1
    • 2.36.0-0ubuntu0.20.04.3
    • 2.36.2-0ubuntu0.20.04.1
    • 2.36.3-0ubuntu0.20.04.1
    • 2.36.4-0ubuntu0.20.04.1
    • 2.36.6-0ubuntu0.20.04.1
    • 2.36.7-0ubuntu0.20.04.1
    • 2.36.8-0ubuntu0.20.04.1
    • 2.38.2-0ubuntu0.20.04.1
    • 2.38.3-0ubuntu0.20.04.1
    • 2.38.4-0ubuntu0.20.04.2
    • 2.38.5-0ubuntu0.20.04.1
    • 2.38.6-0ubuntu0.20.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • qtwebkit-opensource-src Ubuntu:20.04:LTS

    Versions
    • 5.212.0~alpha3-3
    • 5.212.0~alpha3-5
    • 5.212.0~alpha3-6
    • 5.212.0~alpha3-7
    • 5.212.0~alpha4-1
    • 5.212.0~alpha4-1ubuntu1
    • 5.212.0~alpha4-1ubuntu2
    • 5.212.0~alpha4-1ubuntu2.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wpewebkit Ubuntu:20.04:LTS

    Versions
    • 2.26.3-1
    • 2.26.4-1
    • 2.26.4-1build1
    • 2.28.0-1
    • 2.28.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • qtwebkit-opensource-src Ubuntu:22.04:LTS

    Versions
    • 5.212.0~alpha4-12
    • 5.212.0~alpha4-13
    • 5.212.0~alpha4-14
    • 5.212.0~alpha4-14build1
    • 5.212.0~alpha4-14ubuntu2
    • 5.212.0~alpha4-15ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • webkit2gtk Ubuntu:22.04:LTS

    Versions
    • 2.34.0-1ubuntu1
    • 2.34.1-1ubuntu1
    • 2.34.2-1ubuntu1
    • 2.34.3-1
    • 2.35.3-1ubuntu1
    • 2.35.90-1ubuntu1
    • 2.36.0-2ubuntu1
    • 2.36.2-0ubuntu0.22.04.1
    • 2.36.3-0ubuntu0.22.04.1
    • 2.36.4-0ubuntu0.22.04.1
    • 2.36.6-0ubuntu0.22.04.1
    • 2.36.7-0ubuntu0.22.04.1
    • 2.36.8-0ubuntu0.22.04.1
    • 2.38.2-0ubuntu0.22.04.2
    • 2.38.3-0ubuntu0.22.04.1
    • 2.38.4-0ubuntu0.22.04.1
    • 2.38.5-0ubuntu0.22.04.1
    • 2.38.6-0ubuntu0.22.04.1
    • 2.40.4-0ubuntu0.22.04.1
    • 2.40.5-0ubuntu0.22.04.1
    • 2.42.1-0ubuntu0.22.04.1
    • 2.42.2-0ubuntu0.22.04.1
    • 2.42.3-0ubuntu0.22.04.1
    • 2.42.4-0ubuntu0.22.04.1
    • 2.42.5-0ubuntu0.22.04.2
    • 2.44.0-0ubuntu0.22.04.1
    • 2.44.2-0ubuntu0.22.04.1
    • 2.44.3-0ubuntu0.22.04.1
    • 2.46.1-0ubuntu0.22.04.3
    • 2.46.3-0ubuntu0.22.04.1
    • 2.46.4-0ubuntu0.22.04.1
    • 2.46.5-0ubuntu0.22.04.1
    • 2.46.6-0ubuntu0.22.04.1
    • 2.48.0-0ubuntu0.22.04.1
    • 2.48.1-0ubuntu0.22.04.1
    • 2.48.3-0ubuntu0.22.04.1
    • 2.48.5-0ubuntu0.22.04.1
    • 2.48.7-0ubuntu0.22.04.2
    • 2.50.1-0ubuntu0.22.04.1
    • 2.50.2-0ubuntu0.22.04.2
    • 2.50.3-0ubuntu0.22.04.1
    • 2.50.4-0ubuntu0.22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wpewebkit Ubuntu:22.04:LTS

    Versions
    • 2.32.4-1
    • 2.34.1-1
    • 2.34.2-1
    • 2.34.3-1
    • 2.34.4-1
    • 2.34.5-1
    • 2.34.6-1
    • 2.36.0-2ubuntu2
    • 2.36.0-2ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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