CVE-2026-83596
Webkitgtk: validate the full featurelist array once in opentypeverticaldata findfeature
HIGH 8.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.32 % · percentile 25 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Awaiting Analysis
Description
A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling.
Weaknesses (CWE)
- CWE-120 — Buffer Copy without Checking Size (Classic Buffer Overflow)
References
- https://access.redhat.com/errata/RHSA-2026:69098
- https://access.redhat.com/errata/RHSA-2026:74084
- https://access.redhat.com/errata/RHSA-2026:89821
- https://access.redhat.com/errata/RHSA-2026:89822
- https://access.redhat.com/errata/RHSA-2026:91631
- https://access.redhat.com/security/cve/CVE-2026-83596
- https://bugs.webkit.org/show_bug.cgi?id=322969
- https://bugzilla.redhat.com/show_bug.cgi?id=2526490
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · secalert@redhat.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-68809
- GCVE · GCVE-0-2026-83596
Affected products
| Product | Versions |
|---|---|
| WebKit · WebKit | affected 1.10.0 < * |
| WebKitGTK · WebKitGTK | affected 1.10.0 < * |
| Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:2.54.0-1.el7_9 < * |
| Red Hat · Red Hat Enterprise Linux 8 | unaffected 0:2.54.0-1.el8_10 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:2.54.0-1.el9_8 < * |
| Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | unaffected 0:2.54.0-1.el9_2 < * |
| Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:2.54.0-1.el9_6 < * |
| Red Hat · Red Hat Enterprise Linux 6 | |
| Red Hat · Red Hat Enterprise Linux 7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |