Medium [CVE-2026-20691] A maliciously crafted webpage may be able to fingerprint the user
This medium-severity Red Hat Linux advisory covers CVE-2026-20691 affecting Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 7.
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Summary
A maliciously crafted webpage may be able to fingerprint the user. Red Hat rates this moderate (CVSS 4.3).
Weakness: CWE-497. Affected package(s): webkit2gtk3, webkitgtk4.
Resolved in Red Hat advisory RHSA-2026:19206 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7.
- webkit2gtk3-0:2.52.3-1.el8_8
- webkit2gtk3-0:2.52.3-1.el9_6
- webkit2gtk3-0:2.52.3-1.el8_6
- webkitgtk4-0:2.52.3-1.el7_9
- webkit2gtk3-0:2.52.3-0.el9_7.1
- webkit2gtk3-0:2.52.3-1.el9_4
- webkit2gtk3-0:2.52.3-1.el8_10
- webkit2gtk3-0:2.52.3-1.el8_4
- webkit2gtk3-0:2.52.3-1.el9_2
- webkit2gtk3-0:2.52.3-1.el9_0
- webkit2gtk3-0:2.52.3-1.el9_8
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:19206
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:19206 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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