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CVE-2026-83596

Webkitgtk: validate the full featurelist array once in opentypeverticaldata findfeature

CVSS 3.1 8.8 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 28 Oct 2026 22:55:13 UTC. Read the latest advisory.

cve-program · CVE-2026-83596

Published

A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-83596

Published

webkit

https://webkit.org/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WebKit",
                    "product": "WebKit",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.10.0",
                            "lessThan": "*",
                            "versionType": "semver"
                        }
                    ],
                    "packageName": "webkit",
                    "collectionURL": "https://webkit.org/",
                    "defaultStatus": "unaffected"
                }

webkitgtk

https://webkitgtk.org/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WebKitGTK",
                    "product": "WebKitGTK",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.10.0",
                            "lessThan": "*",
                            "versionType": "semver"
                        }
                    ],
                    "packageName": "webkitgtk",
                    "collectionURL": "https://webkitgtk.org/",
                    "defaultStatus": "unaffected"
                }

webkitgtk4

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "webkitgtk4",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.54.0-1.el7_9",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/o:redhat:rhel_els:7"
                    ]
                }

webkit2gtk3

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "webkit2gtk3",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.54.0-1.el8_10",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:8::appstream"
                    ]
                }

webkit2gtk3

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "webkit2gtk3",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.54.0-1.el9_8",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:9::appstream"
                    ]
                }

webkit2gtk3

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "webkit2gtk3",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.54.0-1.el9_2",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_e4s:9.2::appstream"
                    ]
                }

webkit2gtk3

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "webkit2gtk3",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.54.0-1.el9_6",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_eus:9.6::appstream"
                    ]
                }

webkitgtk

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "webkitgtk",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:6"
                    ]
                }

webkitgtk3

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 7",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "webkitgtk3",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:7"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON