p PatchFirst

CVE-2026-78376

CVE-2026-78376 · Webkitgtk: use-after-free of jscvalue function parameters

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 flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory handling and result in memory corruption.

CVSS 8.8 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • webkit

    Versions
    • ≥ 2.21.1: Affected (semver)

    No fix published

  • webkitgtk

    Versions
    • ≥ 2.21.1: Affected (semver)

    No fix published

  • red hat enterprise linux 8

    Versions
    • ≥ 0:2.54.0-1.el8_10: Not affected (rpm)

    No fix published

  • red hat enterprise linux 9

    Versions
    • ≥ 0:2.54.0-1.el9_8: Not affected (rpm)

    No fix published

  • red hat enterprise linux 6

    No fix published

  • red hat enterprise linux 7

    No fix published

  • red hat enterprise linux 7

    No fix published

  • 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
    • 2.54.0-1~deb13u1
    • 2.54.0-1~deb13u2
    • 2.54.0-1~exp1
    • 2.54.1-1
    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
    • 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
    Affected ranges
    • ECOSYSTEM: < 2.54.0-1~deb13u1

    Update to 2.54.0-1~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
    • 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
    • 2.54.0-1~deb13u1
    • 2.54.0-1~deb13u2
    • 2.54.0-1~exp1
    • 2.54.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • 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
    • 2.54.1-1
    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
    • 2.54.1-1
    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
    • 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
    Affected ranges
    • ECOSYSTEM: < 2.54.0-1

    Update to 2.54.0-1

  • 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

Original sources

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